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ST 131 “PIRANHA – II” ST 131N - TS

1. set the central frequency value of the analyzed band using the numeric keyboard Keep in mind that if the band width is over 6 8 MHz the set frequency value will be divisible by 4MH2z if the band width has smaller value it will correspond to the set value Press the or lt button to cancel the typed value Press the ENT to confirm your request In order to sequentially scan the full frequency range with the selected analyzed band e press the t and buttons with the frequency step is equal to the analyzed band width e to rotate the VALCODER while the step is set in the INFORMATION window p 2 4 and is indicated in pos 1 fig 7 35 Press the BAND button to center the swath on the screen In order to display the spectrogram section located for example at the edge of the screen you need to move this section in the center of the screen You can make this using the cursory lines of the CURSORY CHANGES option Press the MEA button and then the VALCODER Set the cursory line appeared on the screen in a place that you want to move in the center of the screen Then press the BND button to automatically move the set place of the cursory line in the center of the screen 3 3 The Demodulation Mode This mode is mainly indented for sound control of a demodulated signal Press the DMD button to enter and exit the mode the cursory lines will appear and the volume contro
2. button to automatically set the cursor on the detected frequency fig 24 Then press the BND button to automatically set the central cursor selection line of the BAND center frequency on the detected signal fig 25 Press the BAND context button to set the band of for example 6 8 MHz Press again the BND button to display the band of 6 8 MHz width with the detected signal in the center of the screen fig 26 Press the gt 0 lt button to optimize the image RADIO Figure 24 e Manually set the cursor of the BAND mode on the detected signal Press the BND button and after the cursor line appeared set the cursor line on the signal And as it was described in the first variant press again the BND button to display the band of 6 8 MHz width with the detected signal approximately in the center of the screen 10000 MHZ ge bereet MEA O Figure 25 In order to control the volume of the detected signal switch to the DEMODULATION mode by pressing the DMD button In this case you will see the cursor lines of the volume control and hear the sound from the built in speaker or from the headphones which are always preferred fig 27 In this mode there is a default band the broadest for the volume control 150 kHz It is quite enough knowing that the sound in the premise is the source 76 of the phonogram that you are listening If you need to increase the quality of
3. 30 Displayed noise level in the range for the main unit dBm Displayed noise level in the band of 1 kHz for the main unit dBm Maximum input signal dBm Maximum voltage V input IF bandwidth value kHz Input amplifier gain dB at least minus 90 120 for the PC mode at least minus 125 6800 2500 630 150 75 40 10 5 1 and 0 5 minus 5 1 7 13 19 25 31 AGC Frequency range 2 kHz 0 3 15 Displayed noise level in the at least minus range for the main unit dBm 115 140 for the PC mode Maximum input signal dBm Input amplifier gain dB 14 26 38 44 50 56 AGC Common mode rejection ratio at least dB Maximum input voltage V OPTICAL CHANNEL Dynamic range dB at least Bandwidth kHz 0 1 1500 INFRARED SENSOR T131 Spectral range nm 770 1600 Angle of view degrees Wire length m 111 ACOUSTOELECTRIC CHANNEL Frequency range kHz 0 01 125 Displayed noise level in the minus 100 range for the main unit dBm 148 for the at least PC mode Displayed noise level in the minus 120 band of 1 kHz for the main unit dBm at least Maximum input signal dBm Input amplifier gain dB 6 14 20 26 34 and 40 MAGNETIC ANTENNA ST131 MF Frequency range if the 30 30000 transformation ratio is irregular 4 dB GHz Transformation ratio in the 1 00 0 01 frequency of 1000 GHz V m A Threshold sensitivity 2 10 6 Alm GH
4. Signal level e 2 Mark of the automatic pair control e 3 Mark of the manual pair selection e 4 Pair number Characteristic of the automatic signal level control is the movement of the mark 4 fig 26 along the pair numbers with indication of the signal level and the volume control on the pair where the mark is standing 94 In order to manually select the pair rotate the VALCODER the 4 and 5 marks will coincide horizontally Rotate the VALCODER to select the pair In order to control the selected pair in detail press the PAIRS button with the switch to the indication corresponding to fig 26 Press again the PAIRS button to return to the automatic control Press the gt O lt button to automatically adjust the signal levels vertically press A and buttons to do it manually Additional recommendations Before checking the power lines we recommend to switch off all consumers and search the premise for the STM connected to the power line Inner holes of the outlet boxes are the most likely places where they can be located You should connect the ST 131 to all the outlets in the premise as the premise and the data transmission from the premise as well can be supplied with power from different phases 95 After checking the power lines you should check the power strips extension cords and other energy consuming devices by connecting them to the power supply network one by one In the cas
5. Appendix 1 Selection of signal averaging variants 1 You should use linear averaging to analyze Stationary signals in the pop up window they are specified as AVERx8 x16 x32 and x64 2 Peak averaging with linear reduction in the pop up window they are specified as PEAKx8 x16 x32 is applied to nonstationary signals In this averaging the reduction coefficient is 4 times larger than the increase coefficient You can use this to point out nonrandom signals 3 Holding accumulation of spectral peaks PEAK is used if it is necessary to register a rare signal or a pulse train when the time of its appearance is unknown Press the R button on the numeric keyboard to reset the accumulation results 116
6. VALCODER In this case the upper range value is limited to 125 62 5 31 25 15 62 and 7 812 kHz e using the standard switch through the modes FULL RANGE BAND DEMODULATION 102 Within the framework of this channel this variant is used to analyze the ultrasonic signals over 20 kHz transferred in the audible spectrum The first variant is intended for operation in the acoustic frequency range the second variant in the ultrasonic one 4 4 4 Operation of the magnetic field sensor ST131 MF Rotate the VALCODER to select the necessary frequency range 0 01 15 62 kHz Use ST131 MF to mainly search for spurious low frequency electromagnetic radiation appeared when office appliances and other communications electronics equipment computers intercommunication devices sound reinforcement systems tape recorders phones etc are operating Potential sources of the spurious low frequency magnetic fields should be checked separately In spite of high sensitivity of the sensor distance 103 between the sensor and the examined object should be minimal if possible provide touch proximity You should examine the object by moving the sensor along its surface and changing the spatial orientation The audio control through the headphones is the main control variant 4 5 Operation of the Nonlinear junction detector option Connect the wire line adapter ST 131 AWL NJ to the ST 131 main unit in accordance with th
7. connector The connection is made not only to the most common pairs of combinations but also to selectable variants set 4 by the user 1 26 1 2 1 Sockets for probes 2 Contact GROUND 3 RJ 45 connector 4 LINE line voltage indicators 5 PWRILINK indicator of power and data exchange with the main unit 6 OVERLOAD input overload indicator At the bottom part of the adapter there are clamps for the holder and the shoulder strap of the main unit While establishing the connection to the main unit follow the connection Adapter Main unit CH1 CH1 CH3 CH2 l O l O Choose WIRE LINE channel 0 01 30MHz from the channels list to analyze signals within the frequency range 0 01 30 MHz Choose DLA 0 3 15 kHz from the channels list to analyze signals within the frequency range 0 3 15 kHz Connection to the examined line is made through e RJ 45 connectors 3 that provide connection to ETHERNET and telephone line with point to point connection if necessary e sockets for measuring probes 1 that provide connection to other types of wire links using additional clips 12 After pressing the context button COMM on the main unit you can choose variants of commutation of wire pairs connected to the RJ 45 connector RANGE __ fefe wiiiv DETECT SKEAN DIFF Combinations 4 5 3 6 1 2 and 7 8 are the most likely variants You can choose
8. is stopped 66 4 1 3 Prestarting procedures for the 4000 18000 MHz range Connect the SHF detector ST131 SHF to the I O connector of the main unit Switch on the main unit and select the RADIO 4 18 GHz channel from the MENU 4 1 4 Operation of the 30 4100 MHz range Press the INF button to see the following default pre settings of this mode Band BANDDDC 6 8 MHz Demodulation band Demodulation band step 20kHz STEPDMD Indication dynamic range 60 dB SCALE Averaging DETECT PEAK X 8 Demodulator DEMOD GAIN IN 19dB 67 Before you start operation you need to set an optimum variant of the spectrogram indication Press the gt o lt button to optimize the image of signals on the screen Figure 21 1 Overload indication 2 Attenuation level 3 Gain level The gt 0o lt button in the RADIO channel opposed to other channels also provides elimination of the input overload using the controllable attenuator of the UHF converter After the sigh OVERLOAD is displayed pos 1 you need to press the gt 0 lt button without changing the gain to set an automatically determined attenuation level 5 30 dB in 5 dB step indicated in pos 2 fig 21 68 Manual setting of the attenuation level is possible in two variants e select the necessary attenuation level by pressing the INF button see p 2 4 sequentially press the W button When you reach the maximu
9. option see p 3 10 We recommend to use this option when you repeatedly go round you premise and manually sequentially select the standards Within the framework of this channel the review of searching possibilities of the FULL RANGE mode can be considered as completed 73 The switch to the BAND mode is necessary even if the STM was detected in the FULL RANGE mode It is a common practice to install on purpose a power and easy detected STM along with the more professional one that is far harder to detect This mode scans the range only in the selected bands of 1024 256 MHz The 64 MHz band is intended to detect pulse trains as well as one shot signals There is no scanning in the bands from 6 8 MHz to 0 5 kHz a prompt spectrum analysis is provided by increasing the signal to noise ratio inversely proportional to the band For comparison in the FULL RANGE mode the displayed noise level is at least 85 dBm and in the BAND mode if the selected band is 6 8 MHz at least 110 dBm As we can see a win in sensitivity is 20 dB and in resolution in more than 1000 times The further analyzed band reduction increases this value 74 In a classic case of detection of the narrow range frequency modulated signal shown in fig 23 you can switch to its detailed analysis in the BAND mode by following these two variants e Use the AUTOMATIC ANALYZING submode Press the A
10. screens of your computer and ST 131 106 6 Specifications DIGITAL SIGNAL PROCESSING MODULE Concurrent processing 0 01 30 frequency range MHz ADC resolution 10 14 and 16 Number of FFT points 32768 for the PC mode 512 for main unit Filter passband DDC MHz 0 01 6 8 Demodulators AM FM SSB TV AM RADIO CHANNEL UHF converter Frequency range MHz 30 4100 Displayed noise level dBm 75 110 for the in the full range minus PC mode in the band of 1 kHz minus 110 Input signal maximum level 5 dBm 107 Analysis rate at least GHz 10 sec IF bandwidth value MHz 1024 512 224 112 54 28 6 8 2 5 0 63 0 15 0 075 0 04 0 001 and 0 0005 Identified data transmission CDMA GSM standards 3G WLAN WiMAX BLUETOOTH DECT SHF DETECTOR Frequency range MHz 4000 18000 Threshold sensitivity dBm Beamwidth degrees 60 90 108 WIRE LINE CHANNEL Frequency range 1 MHz 0 01 Displayed noise level in the range for the main unit dBm Displayed noise level in the band of 1 kHz for the main unit dBm Maximum input signal dBm 30 at least minus 90 120 for the PC mode at least minus 125 Maximum input voltage V 250 IF bandwidth value kHz Input amplifier gain dB 6800 2500 630 150 75 40 10 5 1 and 0 5 minus 5 1 7 13 19 25 31 AGC 109 WIRE LINE CHANNEL Frequency range 1 MHz 0 01
11. to analyze and process signals Figure 1 This Software has e Spectral oscillographic vector analysis waterfall e Signal database e MONITORING with advanced pre settings Figure 1 Stream record of signals to HDD Special detection algorithms For detailed information about the program s capabilities and instruction please refer to the CD PC requirements e Processor dual core processor with frequency 2 GHz and faster e Memory at least 1 Gb Monitor at least 1280x1024 wide screen is recommended Ports USB 2 0 e OS Windows 7 Windows Vista Windows XP 9 1 3 3 UHF Converter ST131 UHF 3 6 2l4 41 UHF Converter converts radio signals within the frequency range 30 MHz 4400 MHz ST131 UHF is connected to the main unit through the I O connector 1 SMA connector 2 Power and battery discharge indicator 3 Power switch 4 Indicator of quality connection with the main unit 5 Thread 1 4 6 Battery compartment cover There is a power supply socket at the end of the UHF Converter s handle 10 1 3 4 Wire line adapter ST131 AWL ST131 AWL is a monoblock unit that includes reducing transformer voltage converter that works within the frequency range 0 01 30 MHz low frequency differential amplifier that works within the acoustic frequency range 0 3 15 kHz switching unit controlled by the main unit that connects the necessary contact pairs of the RJ 45
12. will correspond to close proximity of the emitting source taking into account the features of the specific channel If the scale is fully filled with the red segments and the emitting source is not found press again the gt 0 lt button While working in the WIRE channel this submode has additional functions that are described in the paragraph OPERATION OF ST131 46 3 6 The Memory submode This submode is intended to e save a screen shot in the nonvolatile memory of the product and then the saved image can be displayed on the screen or used as a pattern for the SUBSCTRUCTING THE SPECTRUM option see p 3 11 scan or edit the signal database that was created using the function of auto database creation only for the RADIO 30 4100 MHz channel see p 3 4 1 Press the M button to enter the submode In this case the product proceeds to operation with the screen images in all channels except the RADIO 30 4100 MHz channel see p 3 6 1 While operating in the RADIO 30 4100 MHz channel the functions of the context buttons are the following SCREEN work with the screen images RD SCAN scan and edit the signal database This provides the opportunity to select the 47 operation either with the screen images or the signal database see p 3 6 2 Press the INFO button and the MEMORY context button to check the memory usage 3 6 1 Operation with the scre
13. 100 1000 10000 kHz and band STEP DMD frequency step of DEMODULATION BAND 1 10 100 1000 10000 HZ and band ATTENUAT select the attenuation level of the UHF converter ST131 UHF 0 30 dB MEMORY access to the information window of nonvolatile memory distribution of the main unit If chosen it flashes on red 29 3 Modes submodes and options ST 131 has Three modes FULL RANGE BAND DEMODULATION e Four submodes SCALE AUTO ANALYZING MEMORY and MEASUREMENTS e Four options OSCILLOGRAPH SUBSTRACTING THE SPECTRUM DIGIT and NONLINEAR JUNCTION DETECTOR only for ST131N 3 1 The Full range mode There is an auto entry to this mode after you chose the channel from the channels list in the MENU or after you pressed the button FULL except for the range RADIO 4000 18000 MHz In general this mode makes visual estimation volume control is available only in the OPTICAL and ACOUSTIC channels of the loading level of the selected channel s range as well as decides to switch to 30 e detailed examination of the range s sections in the BAND mode e analysis of the specific frequencies using the AUTOMATIC ANALYSIS submode In this mode the horizontal resolution of the display and the frequency step are the following in the RADIO channel 32 MHz pixel in the WIRE channel
14. ERLOAD can be indicated when the signal is not on the displayed spectrogram In this case switch to the FULL RANGE mode in order to find the source of the overload 27 2 3 Main menu Press the SET button to enter the MENU Figure 3 LPF demodulation select the cut off frequency of the first order filter at the output of the demodulator Gain out to choose the line output signal level and headphones A default option is AGC automatic gain control More indicat of overloading this setting promptly indicates the overload when it reaches the pos 4 fig 2 The default time delay is five seconds As a rule band and out of band impulse interference causes short indication of the overload This option also switches on the additional indication of the displayed signal output when it is out of the screen edges the sign pinning because in some specific situations it is hard to see that on the screen 28 Disable the probe ident switch off the function of identification and diagnostic of the external converters ST131 UHF ST131AWL and ST131 IR 2 4 Information Press the INF button to access the current settings and additional installations Figure 4 Ver X X XX a new firmware version of the main unit RANGE select a dynamic indication range Available variants 30 60 and 120 dB STEP DDC frequency step of ANALYSIS BAND 0 01 0 1 1 10
15. HF A Telescopic antenna Set of probes Alligator clips Ground cable Power supply unit 2 items Main unit holder Main unit shoulder strap e Tripod e USB cable e Hex key AA batteries 8 pieces Headphones CD with software Attenuator only for ST131N Technical description and user manual Option set SHF antenna detector ST131 SHF Infrared sensor ST131 IF e Magnetic field sensor ST131 MF 1 3 1 Main unit Functions of sockets and control elements are shown on main unit pictures 1 I O Connection of UHF Converter ST131 UHF SHF detector T131 SHF and infrared sensor ST131 IR 2 GEN Output of probing signal generator only for ST1331N 3 CH2 Connection of converters of Acoustic channel and magnetic sensor ST131 MF 4 CH1 Connection of a wire line adapter ST131 AWL 1 Line output 2 3 5mm jack socket for headphones 3 Volume control 4 Battery compartment covers 5 Power switch 6 Socket for connection of power supply unit 7 USB port There is a thread hole at the bottom of the main unit it is used to connect the main unit holder and the shoulder strap Here you can also see information about the product number as well as polarity of the batteries that you should know while installing them in the battery compartment 8 1 3 2 Software The Software of the ST131 ANALYZER PRO essentially expands the capabilities of the product
16. MHz inconstant value of the sample accumulation maximum time The MAX TIME context button was added to change these values The available values are the following 0 1 0 8 3 2 13 52 and 208 ms If the sample values are maximum the product s response to pressing on the buttons sharply slows down of up to 1 sec e minimum time for indication transmission and processing of the received signals Selection of the sample accumulation maximum time value allows the user to choose between the detection and the accurate display of the pulse train with a short pulse duration and the accurate display of the pulse train with a long pulse duration 84 er user omer iain Lh a Figure 28 In order to detect the radio pulses using oscillograph do the following e Select the center frequency of the analyzed band Select the position of the cursor lines of the BAND mode on the spectrogram see fig 6 p 3 2 or when you are in the oscillogram press the SET FREQ context button and type the frequency value on the numeric keyboard AABIO BAND O30 Figure 29 85 The switch to the oscillogram indication is automatic in the 64 PULSE band If the analyzed band has other values select the MEASUREMENTS submode by pressing the MEA button and press the OSC context button To To stop the signal switch to the measurement by pressing the MEA button only for the 64 PULSE ban
17. Operation of the RADIO channel 4 14 1 Prestarting procedures for the 0 01 30 MHz range Connect the supplied telescopic antenna or any other antenna of the same range to the CH1 socket of the main unit Switch on the main unit and switch off the identification of external converters MENU ADVANCED SETTINGS Then select the WIRE LINE 0 01 30 MHz channel 65 4 1 2 Prestarting procedures for the 30 4100 MHz range Insert the batteries in the UHF converter ST131 UHF see p 1 7 or connect the power unit Connect the UHF antenna ST131 UHF A Connect the UHF converter to the I O connector of the main unit Switch on ST131 UHF by moving the power switch to the ON position Be sure that the LINK indicator has flashed once and the ON LOW BAT indicator lights constantly Switch on the main unit and select the RADIO 30 4100 MHz channel from the MENU After that during several minutes you will see the identification and checking process of ST131 UHF accompanied by the screen savers that sequentially replace each other CONNECT UHF CONVERTER and TEST UHF CONVERTER On completion the information on the screen will correspond to the FULL RANGE mode This mode sequentially scans the range and the LINK of ST131 UHF indicator flashes on and off every second If you select the BAND or DEMODULATION modes this indicator does not flash the scanning process
18. ST 131 PIRANHA II ST 131N Multifunctional counter surveillance devices TECHNICAL DESCRIPTION amp OPERATION MANUAL CERTIFICATE TS Market Contents Taligolo 0 eil e qmerremeerrreseerrtn erertree aiana 3 1 General Characteristics 0cceeeeeee 3 2 Control and Indicators of ST 131 24 3 Modes submodes and options 30 4 Operation of 1131 cece 65 5 The main unit s software update 106 6 Specifications cccceccscecesssecsesseeeesees 107 7 Acceptance Certificate ccc 114 8 Warranty obligations cceeeeeee 115 APPENA aa 116 Introduction ST 131 Piranha ll is a multifunctional detection device designed for detection and localization of special technical means for surreptitious obtaining of information ST 131N is a multifunctional detection device that has all components and capabilities of ST 131 Piranha Il but also has option for detection of nonlinear transfer in wire circuits Hereinafter unless otherwise specified ST 131 Piranha ll and ST131N referred as ST131 Prior to running ST131 read carefully this manual and keep it for further reference Any part of this document can be changed without prior notice 1 General Characteristics 1 1 Purpose and main features The purpose of the multifunctional detection device ST 131 Piranha Il is to detect and localize special technical means STM intended for surrep
19. about 156 kHz 1 Low frequency range 2 High frequency range 3 Maximum high 2 value of the displayed signal level 4 Values of the level and the center frequency of the maximum displayed signal in the frequency spectrum 5 Averaged value of the displayed noise level 6 The selected wire pair of the RJ 45 connector only for the WIRE channel The frequency spectrum is understood to be the value setting of frequencies divisible the horizontal resolution of the display For example as far as the RADIO channel is concerned this value is 32 MHz the value is displayed in the mode BAND in the fig 6 pos 5 That is why indication of the frequency value in the fig 5 pos 4 means that the maximum signal ranges 128 32 MHz 34 Figure Functions of the context buttons Below are the all possible variants of the context buttons functions for all the channels in this mode The buttons variants are different in every channel COMM access to selection of the wire pairs in the WIRE channel see p 1 3 4 for details GAIN different fixed values are provided to amplify the input amplifier as well as automatic gain control AGC DIFF switch on of the spectrum subtraction function DIGIT access to the option DIGIT in the RADIO channel refer to p 3 9 3 2 The BAND mode This mode analyzes in detail signals in the selected band The swath r
20. ant for other channels In fact this submode is a graphical interpretation of the signal level that aims to locate the STM in the immediate search In general the indication principle and the search 44 method in this submode are similar to such widespread detection devices of the STM as broadband field detectors In this submode the maximum signal level can be displayed in the FULL RANGE and BAND modes While you are in this submode you can also set the central frequency of the view scan using the numeric keyboard the SET FREQ button The fig 11 shows the screen of the RADIO channel 30 4100 MHz in the FULL RANGE mode 1 Numeric scale calibration 2 Scale of the signal level 3 Value of the level and the signal s central frequency LEVEL INDICATOR RADIO 30 4100MHz FULL BAND Max Laval 0dan p30 0MHE q d EA af 4 if afal 10 6 T Figure 11 45 LEWEL INDICATOR RADIO 30 4100MHz BAND 30H 1 99969GHz 2 0000GHz 2000416 Max Lowel TRIE ir Hi te ti oa Figure 12 The fig 12 Sane the screen of the RADIO channel 30 4100 MHz in the BAND mode 1 Value of the lower central and upper frequencies of the analysis 2 Value of the analyzed band Press the gt 0 lt button to set the scale relative to the noise level Press lt and gt buttons to move the scale horizontally Increase in the number of segments that flash red simultaneously
21. asurement of the radiation sources a priori unknown polarization Use the MEASUREMENT function to visually estimate the detected signals and make measurements Press the MEA button to switch to the OSCILLOGRAPH option see p 3 7 Thereafter press the SPECTRUM context button to switch to the signal spectrogram you can find the description of possibilities in p 3 10 Rotate the VALCODER to change the analyzed band 89 Additional recommendations The legal sources of radiation are almost absent in the given frequency range The exceptions are the 5 6 GHz band and burglar and fire alarm sensors That is why any radiation presented in this range should be carefully examined and either the source of radiation will be found or there will be a substantiated statement about the source that is out of the controlled area limits 4 2 Operation of the WIRE LINE channel 4 2 1 Prestarting procedures Connect the ST131 AWL wire line adapter WLA to the ST 131 main unit Connect the analogous sockets Switch on the main unit and select the WIRE LINE 0 01 30 MHz channel from the MENU to operate in the high frequency range or the WIRE LINE 0 3 15 kHz to operate in the audio frequency range As the ST131 AWL is indicated information appeared on the screen will correspond to the FULL RANGE mode 90 You can connect the WLA to the examined line e through the connecting probes
22. at exceed the threshold set by the user e create the database of the detected signals in the RADIO channel 38 Figure 9 Press the A button to enter the submode Press any function button to exit the submode 1 The marker stop frequency value 2 The line of the THRESHOLD level 3 The marker 4 The signal level in the position of the marker When you press the A button you will see a threshold line 2 on the screen as well as the marker 3 at the top of the screen if the signal level is above the threshold line Rotate the VALCODER to set the level of the THRESHOLD line 39 Functions of the context buttons TYPE set the type of the THRESHOLD line You can choose between a straight line LINE and a curve line ENVELOPE that repeats the signals envelope line The default type of the threshold line is THE SPECTRUM ENVELOPE that is set automatically considering the loading level of the spectrum and its degree of variation The straight line is preferred in the detailed analysis of the signals BACK change the direction of the marker s movement Press the DMD button to quickly move to the volume control of the extracted signal In this case the product switches to the DEMODULATION mode with the central frequency of the demodulation band corresponding to the position of the marker Press the A button to move to the next the signal that exceeds the thres
23. buttons in the FULL RANGE and BAND modes will be the following OSC switch to the signal time domain representation see p 3 8 DRAW select the type of the spectrum display a continuous spectrum or a spectrum envelope WINDOW switch on the window Henning function to improve the resolution of the weak signals with the strong ones in the background except the FULL RANGE mode of the RADIO channel If selected it flashes red In the DEMODULATION mode after the MEA button has been pressed the functions of the context buttons are changed as well as there is a switch to the oscillogram of the demodulated signal Press the VALCODER to display the cursory line and open the cursory measurements Rotate the VALCODER to move the cursory line in one pixel step of the screen horizontal resolution 52 1 The main cursory line 2 The central frequency value of the main cursory line 3 The auxiliary cursory line 4 The signal level value in the position of the main cursory line 5 The difference value between the main and the auxiliary cursory lines There is a peculiarity in interpretation of the cursory measurements results in the oscillograph of the BAND mode In order to get the true frequency value of a carrier switch to the SPECTRUM ANALYZER or correct the value defined by the cursory measurement by adding or subtracting this value to from the adjustment frequenc
24. by pressing and buttons Press ENT or VALCODER to confirm your choice SELECT random pairs with exception of similar pairs to prevent short circuit e 1 number cont 1 8 Keyboard input of the first contact number e 2 number cont 1 8 Input of the second number The set pair is indicated under the sign SELECT The pair of contacts set for analysis is indicated in the pos 6 NEGATIVE POSITIVE polarity changing of the connected wire pairs NO CONN disconnection from the examined line ST131 AWL ensures safe operation if voltage is less than 250V in input connectors Attention During operation of ST131 AWL strictly observe the rules of electrical safety to avoid electric shock 1 3 5 Infrared sensor ST131 IR This sensor includes a photodiode receiver and preamplifier The sensor connects to the main unit through the l O connector At the front surface of the frame there is a thread intended to connect a special holder to the rotation gear 14 1 3 5 1 Holder m as The holder is intended to assist in searching of IR transmitting equipment installed for example at the outer side of a window in the direction from the window The holder consists of four sections with the overall maximum length of 900 mm The rotating gear quickly sets the necessary viewing angle within 180 1 3 6 SHF antenna detector ST131 SHF ST131 SHF co
25. c power line telephone network computer networks fire and burglar alarm networks etc that could be de energized as well as energized with DC or AC voltage of up to 250 V Use the ST131 AWL wire line adapter to connect the examined lines Use the Wire channel with the included telescopic or other antenna of the same frequency range to analyze radio signals within the frequency range 0 01 30 MHz 20 1 5 3 Optical channel This channel receives and processes emissions in the optical band Infrared sensor ST131 IF is intended to operate in this channel 1 5 4 Acoustoelectric channel This channel receives amplifies and analyzes signals within the frequency range 10 Hz 125 kHz Ultrasonic signal is converted into an audio signal using frequency translation Use of acoustic converters of any type depends on the tasks considering the channel s parameters 1 6 Power supply of ST 131 1 6 1 Main unit The main unit of ST 131 is powered by six AA batteries accumulators or by the power supply unit A fully colored battery pictogram indicates that the batteries are fully charged Colorless and crossed out symbol 2 indicates the fully discharged batteries Energy rich batteries of Energizer type are preferred 21 Under average operating conditions backlight is on 50 of the time volume is at 50 of the nominal the life time of one battery pack is at least 5 hours It is allowed to use
26. d Then press the F3 context button to select TRIGGER Set the line of the synchronization level using the VALCODER at the level exceeding the noise level Set the trigger in the TR ONE position the FS button If necessary make the cursor measurements press the VALCODER and follow the operation description of the cursor lines refer to the Measurements submode In order to record the signal image in the product s memory press the M button and follow the operation description of the product s memory refer to Operation with the screen images estimate detectivity we can provide the following numbers 86 While using the PULSE function the pulse train with the pulse width of 0 1 ms and over and the duty cycle of 1 1 is detected without loss if the duty cycle is 1 100 the detection time will take about 3 sec 1 1000 over 50 sec If the band is 6 8 MHz the pulse train with the pulse width of 0 1 ms and over and the duty cycle of 1 1 and 1 100 is detected without loss if the duty cycle is 1 100 the detection time will take 1 sec 1 1000 at most 2 sec Additional recommendations While searching for the STM intended for the audio data transmission take into account the real audio intercept zone based on a microphone sensitivity Except for special cases it is no more than 20 meters As a rule they try to install the STM as close as possible to a site of negotiat
27. d signal if the radio microphone is of high quality the effect will be low or it can be absent If the acoustic feedback is appeared you will hear an indicative howl its tune and intensity will be changing while the speaker of the main unit is approaching the radio microphone In the STM with digital modulation types there will be no correlation between the background sound of the examined premise and the signal in the headphones However after specific training the acoustic control of the digital signal is an additional identifier 78 of the signal type and sometimes it is faster than the visual control The wide range of the ST131 ANALYZER PRO program s features such as simultaneous record of the signal image and sound creation of the quadrature WAV file will significantly facilitate the task Press the MEA button to view the oscillogram of the demodulated signal while you are in the DEMODULATION mode In order to view the full range and its segments you should define the analyzed band first The selection depends on many factors such as a priori information about the probable frequency range of the STM in use the ether s impurity level the latest update etc It is reasonable to check the wide bands of 1026 MHz 256 MHz using the SPECTRAL SUBTRACTION option by analogy with the FULL RANGE mode operation The band of 6 8 MHz and lower provide an increase in the spectral resolu
28. dicator 5 Volume control availability indicator 6 Relative current volume level 7 Battery charge indicator i WLINE BAND Oa a d Figure 2 Overload results in inaccurate operation of the product including the possible display of this signal s fake side effects This sign indicates that at the entrance of the main unit there is a signal that exceeds the acceptable maximum input signal for this channel The event time is set in the MENU p 2 3 26 To fix the problem follow the steps 1 if it is possible switch off the signal source 2 gradually decrease the value of the input amplifier the YCWJI context button then hold the gt O lt button until the sign is disappeared The RADIO channel beside the amplifier also has the attenuator that in case of overload can be connected by pressing the gt O lt button to the auto calculated level 5 30 dB in 5 dB step That is why in this channel it is preferred to use the attenuator first press the gt O lt button if that does not work decrease the amplifier Also it is possible to manually set the attenuation level by the pressing the INFO button see 2 4 for details It is necessary to notice that the source of the overload could be signals that are out of limits of the examined band the BAND mode but they are still in the operating range of this channel the FULL RANGE mode That is why the sign OV
29. e 4 1 3 1 Detection of the radio frequency pulses The problem of the RF pulse detection can be figuratively divided into two boundary tasks e Detection of a single radio pulse in indefinite period of time for example during twenty four hours Considering the purpose of the product the sources of such pulse signals are the STM with prior accumulation and further transmission of data through the radio channel so called pulse transmitters Detection of the pulse train that is constant in time The STM with the pulse modulation can be referred to this type of the STM 81 These tasks call the need to detect pulses with wide operation range period and as a rule unknown value of the radiation frequency No doubt detection of the single radio pulse is the most difficult task We strongly recommend to use the ST 131 ANALYZER PRO software as the detection process of such signals takes a long period of time This signal type can be detected in the frequency spectrogram and in the time oscillogram domain Using the spectrogram provides an opportunity to analyze the full frequency range the FULL RANGE mode or its segments the BAND mode of the RADIO channel You need to use peak detectors the PEAK detector is the most effective one Disadvantage of this detection variant is the lower compared to the analysis in the time domain detectivity and lack of information about parameters of the
30. e block diagram using the supplied attenuator S 100A Figure 33 In order to get consistent results you should switch the examined line s both ends off the external sources and consumers as well as off obvious loads and the line length should not be over 200m 104 Connect ST 131 AWL NJ to the examined line by directly connecting to the RJ 45 connector or to the probes After selection of the Nonlinear junction detector option from the Menu the signal level scales with all numbers of the RJ 45 connector s contact pairs will be displayed on the screen When the adaptation process to the connected line is over you will see the automatic sequential measurement and display of the second and third harmonics of the test signal in the level scales The increased level of the test signal s third harmonic is the characteristic proving that a radioelectronic device with nonlinear radio elements in the input circuits is connected to the examined line 105 5 The main unit s software update Switch on ST131 by pressing and holding the ENT button The following sign should appear on the screen UPDATE FIRMWARE MODE Firmware current version Ver X X XX XX Connect with the PC to update firmware Connect ST 131 to the computer using the USB cable the USB driver has to be pre installed Select the necessary software version at the manufacturer s site and launch the program Watch the loading process on the
31. e by connecting the examined line directly to the RJ 45 connector Do not connect simultaneously the connecting probes and the RJ 45 connector pins to different lines This could cause the equipment failure as the lines will appear to be in galvanic connection with each other the probes pin is always connected to the WLA input If there is a voltage of over 5 V in the line the LINE LEDs located on the top cover of the WLA will flash If two LEDs flash then there is an AC voltage in the line one LED a DC voltage The light intensity depends on the voltage level in the line The PWRI LINK indicator during the connection and operation processes flashes constant green The indicator flashes on and off every second during the settings transfer from the main unit such as selection of the RJ 45 connector pairs and an amplification constant of the WLA input amplifier Connect the telescopic antenna to the CH1 socket to analyze the radio frequency signals 91 4 2 2 Operation of the 0 01 30 MHz range This mode checks the examined lines for presence of the high frequency signal and then detects the source of radiation All types of the wire lines are to be tested power phone alarm lines data transmission networks and lines of unknown purposes The radio signals are also controlled by the telescopic antenna The screen information will correspond to the FULL RANGE mode with the following pre settings press
32. e use the SPECTRAL SUBTRACTION function which allows you to see signals that were absent before While checking the subscriber telephone lines you should also determine if the line is used to transmit acoustic information from the premise due to the linear high frequency imposing An unmodulated Stable probing signal in the line is an indicator of the linear high frequency imposing For convenience in nonstationary operation conditions use the shoulder strap of the main unit with preliminary installed the WLA Figure 32 96 4 2 3 Operation of the 0 3 15 kHz range The presence of audio signals in the examined lines is checked by this range High sensitivity and differential connection of the input amplifier provide the detection of signals from such devices as a passive microphone without batteries or a loudspeaker operating in a reverse microphone mode When you first select this channel the screen information will correspond to the FULL RANGE mode with the following pre settings press the INFO button to view Indication dynamic range 30 dB Input amplifier gain 26 dB The BAND and DEMODULATION modes are inactive in this range the volume control is active in the full range In general the above stated recommendations can be used in this audio range In addition you should ground the WLA to prevent interference in power lines appeared as the 50 GHz harmonics whil
33. e working with standard low voltage equipment 97 Connect the contact 2 using the Ground cord to the ground bar of the examined equipment Although the limit input voltage is 250V it makes no sense to control the presence of signals of the audio frequency range in the power lines of 220 V because of inevitable overload of the input amplifier due to presence of harmonics in the network in the given frequency range 4 3 Operation of the OPTICAL channel Connect the ST131 IR IR sensor to the l O connector of the main unit Select the OPTICAL channel from the MENU When you first select this channel the screen information will correspond to the FULL RANGE mode with the following pre settings press the INFO button to view Indication dynamic range 60 dB Demodulator Use the SCALE submode see p 3 5 to search directly using the volume control as a priority taking into account the below listed interference sources Smoothly changing spatial orientation of the IR sensor examine the premise considering a directional diagram of the IR sensor 30 and a presumably quite narrow directional diagram of the IR signal source It should be mentioned that opposed to the RADIO and WIRE LINE channels this channel has an output for audio control of the direct acoustic signal in the FULL RANGE mode This provides a quick detection of optical radiation modulated by the acou
34. eduction increases the horizontal resolution as well as the signal to noise ratio inversely proportional to the band Press the BND button to enter this mode 32 Refer to fig 6 to see the screen image after the first pressing the BND button This is the intermediate stage of this mode selection of the mode section for the detailed analysis DIFF Figure 6 1 Cursory lines of the analyzed band s edges 2 Cursory line of the analyzed band s central frequency 3 The signal level value corresponding to the position of the central cursory line 4 The value of the analyzed band width 5 The value of the screen horizontal resolution i e the band width per pixel If the analyzed band is selected the frequency step is indicated in this place 33 Rotate the VALCODER or type the central frequency value on the numeric keyboard the SET FREQ button to position the cursory lines on the spectrogram Then press the BND button again to indicate the selected range on the full screen fig 7 i e THE BAND OF THE ANALYSIS 1 Press the STEP DDC context button in the information window see p 2 4 to set the band step you can control it by rotating the VALCODER in the full range Figure 7 34 Functions of the context buttons The following context buttons are added in this mode BAND select the analyzed band value Possible values depend on the selected detection channel SET FREQ
35. elected detection channel the operating mode and indicated at the bottom line of the display Function buttons 5 11109 8 Full switch on the FULL RANGE mode BND switch on the BAND mode DMD switch on the DEMODULATION mode L switch on the Scale submode MEA access the measuring functions 24 Power switch switches on off the main unit Volume control controls the level of the audio output signal of the built in speaker line output and headphones Adjustment is available only in certain mode volume control symbol is indicated in pos 4 fig 2 Numeric relative value of the level 0 99 is indicated in position 5 Press the gt O lt button to set automatically the screen size display of the current spectrogram and oscillogram Press the and lt buttons to set the maximum value of the displayed signal level and to scale the display of the oscillogram vertically One press changes this value by 5 dB in the pos 3 fig 5 Thus it provides the amplitude image shift Decrease this value to display the signal that is out of the screen edges Increase this value to display for example a low signal with a high one in the background Press the R button to reset the accumulation results when using the peak detector 25 2 2 Indication General elements of indication are 1 Short title of the current channel 2 Mode 3 Submode 4 Overload in
36. en images While working with the screen images the functions of the context buttons are the following SAVE save the image The screen images are saved in a sequential order in a current group from 001 to 999 These groups are formed according to the current CHANNEL and the MODE of operation LOAD select the saved image from the list and display it Press the gt and lt buttons to navigate through the list When the saved image is displayed the background color of the screen will change to light green 48 FREQ Number 00001 Total ooon2 FULL RF 1 88 2 00RF Figure 13 You can just load the images that belong to the operating channel and mode You can check general information about the number of the saved images in the INFORMATION window p 2 4 An additional context button DIFF is displayed after an image has been loaded Press this button to subtract the saved spectrogram from the current one and automatically exit the MEMORY submode see p 3 9 ERASE select variants to delete the images After pressing this button you will see the submenu with the following variants of deletion 49 CURRENT IMAGE delete the current loaded image CURRENT GROUP IMAGES delete the current group of images ALL IMAGES delete all images NO ERASE do not delete EXIT exit this submode with the settings of the saved image This p
37. evel 3 Mark of the pair s manual selection 4 Numerical relative value of the signal level Press the gt O lt button to automatically vertically equalize the levels of the displayed harmonics use the and buttons to set it manually You can also manually select the pair by rotating the VALCODER the controlled pair is indicated by the mark 3 in fig 19 Press the VALCODER to switch to the detailed analysis of the selected pair see fig 20 Press the VALCODER again to return 63 Figure 20 Functions of the context buttons GEN switch on the test signal generation if switched on it flashes red RESTART the forced adaptation RANGE select the value of the indication dynamic range You can also sequentially select the pairs while the pair condition is displayed in detail by rotating the VALCODER The number of the analyzed pair will be changed at the top left corner CURRENT PAIR X X An excessive level of the test signal s third harmonic pos 2 fig 19 means that the radio electronic device with nonlinear radio elements in the input circuits is connected to the examined line 64 4 Operation of T131 It should be mentioned that compared to the State of the art personal computer computational capabilities of the main unit s processor are obviously limited Use the special software ST131 ANALYZER PRO to take full advantage of the ST 131 capabilities 4 1
38. he transmitter toward the premise In this channel the interference sources are solar radiation electroluminescent lamps incandescent 100 light bulbs connected to the power line with high frequency spurious components If possible during the detection process avoid the direct sunlight penetration in the premise and switch off the light sources 4 4 Operation of the Acoustoelectric channel 4 4 1 Microphone setting up procedures Connect the microphone corresponding to the input parameters of this channel refer to Specifications to the CH2 socket In order to examine signals in the field of ultrasonic frequency use special microphones for example of the 40BE type with a microphone preamplifier of the 12AL type manufactured by the G R A S company 4 4 2 Magnetic field sensor T131 MF setting up procedures Insert new batteries in ST131 MF see p 1 7 4 Connect ST131 MF to CH2 socket of the main unit Switch on T131 MF by moving the power switch to the ON position Be sure that the power indicator flashes pos 2 101 4 4 3 Working with microphone Select the Acoustoelectric channel from the MENU to operate with the microphone When you select this channel the screen information will correspond to the FULL RANGE mode see p 3 1 The default pre settings are the following press the INFO button to view Select the necessary frequency range by e rotating the
39. he alarm lines except for the 220V power lines It analyzes the wire lines for the STM that include radioelectronic elements connected directly to the examined line with nonlinear characteristics diodes transistors etc As a rule they are the elements of the power sources and protection against the input over voltage There are different types of the telephone re transmitters powered by the telephone networks adapters for connection to the phone lines The operating principle is based on injection of a stable sinusoidal signal in the line and on the analysis of the third harmonic s presence which indicates that a nonlinear element is connected to the line The option is activated from the MENU by pressing the SET button and selecting from SELECT CHANNELS AND OPTIONS When this option is selected the signal level scales 61 with all numbers of the RJ 45 connector s contact pairs will be displayed on the screen In the first moment there will also be a sign Cycle of preparing which indicates an adaptation period to the connected line RESART Rance Figure 18 1 Level scale 2 Number of pair When the adaptation period is over there is an automatic sequential measure and display of the second and third harmonics levels of the examined signal in the level scales The scanned pairs in pos 2 fig 18 flash red 62 A Figure 19 RANGE 1 Second harmonic level 2 Third harmonic l
40. hold While working in the FULL RANGE mode Press the BND button to switch to the BAND mode with the central frequency of the analyzed band 40 corresponding to the position of the marker In practice this will provide an electronic magnifier with the resolution corresponding to the selected band Press the FULL button and then press the A button to return to scanning of the signals in the FULL RANGE mode using this submode Switching on of the spectrum subtraction function Clearly indicates a new signal that did not exist at the moment when the function was switched on 3 4 1 Function of the automatic creation of the signal database only for the RADIO channel 30 4100 MHz The result of this function s work is the creation of the detected signals database that you can scan and edit in the MEMORY submode see p 3 6 While you are in the FULL RANGE mode and in the AUTO ANALYSIS submode press the SCAN button to access this function BEGIN FREQUENCY the initial value of the analysis frequency 41 END FREQUENCY the ending value of the analysis frequency FREQUENCY STEP the fixed frequency step SQUELCH LEVEL the threshold level value relative to the spectrum average envelope DETECTED FREQUENCY the current detected frequency value of the signal DETECTED FREQUENCY NUMBER the number of the detected frequencies COMPLETED the curre
41. ions inside a chief executive s table or inside the interior objects that are in close proximity to it Therefore the father from this site the more likely that the detected signal is dangerous except for the STM installed in the phone lines 87 Simultaneous operation of ST 131 and the nonlinear junction locator is not allowed If a car is an object of detection you should correctly choose a place to carry out the detection process where there is a decrease in the electromagnetic background level Thus this place has to be far from radiating communication tools telecasting and broadcasting also from large reflective reradiative surfaces metal barriers house walls garages other cars 4 1 4 Operation of the 4000 18000 MHz range When you select this channel the screen information will correspond to the SCALE submode see p 3 5 with the simultaneous volume control of the detected signal s acoustic frequency range Pre settings press the INFO button to view Demodulation band 15 kHz Indication dynamic range 30 dB Demodulator While searching for the sources of radiation follow the recommendations below e Axis of the SHF detector should be directed to the examined space with a 30 cm distance between the end of the log periodic antenna and the interior objects e Smoothly move the SHF detector along the examined objects also make circular motions about the main axis it is necessary for me
42. l will switch on 1 Demodulator 2 The frequency step 36 2 Figure 8 In order to select the position of the cursory lines on the spectrogram e rotate the VALCODER in 1 pixel width step e press the SET FREQ button and type the frequency value on the numeric keyboard this value will automatically set in the center of the screen Functions of the context buttons DEMOD select the demodulator You can choose AM FM LSB or USB BDMD select the demodulation band Bands from 2 5 kHz to 150 kHz are available for the volume control The band of 6 8 MHz provides just the displaying scan of the demodulated signal In general this band identifies the analogue television video signal 37 FINE precise adjustment of the central frequency of the demodulation If selected it flashes red and the frequency step value fig 8 pos 2 is selected from the values of the demodulation step see p 2 4 Press the MEA button to switch to the oscillogram of the demodulated signal using the opportunities of the MEASUREMENTS submode Press again the MEA button to return to the previous indication the spectrogram of the range or the band While you are in the AUTOMATIC ANALYSIS submode press the DMD button to analyze the signal corresponding the position of the marker fig 9 pos 3 3 4 The Automatic Analysis submode This submode is intended to e extract the signals th
43. led in your premise Otherwise the remote controlled STM including the STM based on the GSM DECT WLAN and BLUETOOTH standards could be switched off and therefore stay undetected 70 All radio transmitting devices should be also switches off in the examined and controlled adjoining premises the base stations and phones of microcellular network radio stations Wi Fi and Bluetooth modems should be disconnected from the power sources Fig 21 shows the typical screen image in an urban setting As we can see the modern city is filled with legal radio signals mobile network TV radio of a reasonably large level that almost not allow to effectively detect for example a narrow range or a wide range signal of the STM while visually analyzing the spectrogram Use the SPECTRAL SUBTRACTION option to quickly detect a signal in this mode In order to do this press the DIFF button while you are in the center of the examined premise or about ten meters from it This provides the memorization of the current spectrum that will be then subtracted from a spectrum got from new measurements Thus when you approach the examined area you will see only new signals on the screen And this will be the first evidence that the signal source is in a close detection area Your moving will make little 71 effect on the level of signals that are definitely far from the examined area An alternative variant preliminary save the signal
44. ly for the BAND mode Rotate the VALCODER to change it 55 TRIGGER activate the indication of the synchronization level line Rotate the VALCODER to vertically change the position of the line TR TYPE select the synchronization conditions gt the synchronization will take place if the signal momentary values are higher the set level lt the synchronization will take place if the signal momentary values are lower the set level Press sequentially F5 to select the display variants of the synchronization results TRIGGER the synchronization is switched off TRGAUT the oscillogram is dynamically displayed on the screen if the synchronization conditions are met TRGONE if the synchronization conditions are met the oscillogram is frozen and is ready for the cursory measurements Press the gt O lt button to automatically center the oscillogram on the screen Press gt and lt buttons to vertically scale the oscillogram display 56 3 9 The Spectrum Subtraction option This option indicates the results of the spectrums subtraction This goal is reached by two ways e remember the current spectrum then subtract it from a spectrum got from new measurements Press the DIFF context button to activate the option Thereafter only new signals will be displayed on the screen e subtract the spectrogram saved in the product s memory fr
45. m value of the displayed signal without attenuation press again this button to sequentially connect the attenuator in 5 dB step If the attenuation level values pos 2 fig 21 are 30 dB and there is still an overload you need to decrease the amplification the GAIN button It should be mentioned that indication of the full range in this mode has mainly informative character about the ether s loading level FULL RANGE Fig 22 shows the possible variants of the signal search in general eS ee a ee oT Figure 22 69 This block diagram depicts variants in red color that are the fastest but therefore less desirable as regards to a signal undetection probability For initial search use the FULL RANGE mode as the product enters this mode automatically after the RADIO 30 4300 MHz channel is selected This mode scans the full range in 32 MHz step in a single cycle The time between the two spectrums displays is 400 ms The maximum harmonic in the 64 MHz band is displayed on the screen The harmonic width is 152 kHz If it is possible you should keep the detection operations in secret and create conditions to activate the remote controlled STM during the process For example simulate an important meeting using the corresponding accompanying audio Obviously this recommendation is very general A real life situation can demand a far better preparation for example if hidden video cameras are likely instal
46. nsists of the log periodic antenna and SHF detector amplifier integrated in one body There is a 1 4 screw hole on the handle intended to connect the tripod It is connected to the I O connector of the main unit 15 1 3 7 Magnetic field sensor ST131 MF A 23 The sensor consists of a ferrite antenna a preamplifier and a handle with a built in battery compartment 1 1 4 screw hole 2 Power on and battery discharge indicator 3 Power switch 4 Battery compartment cover On the opposite side there is a mode switch There is a socket for the power supply unit at the end of the handle 16 ST131 MF operates in two modes e MAGNETOMETER the mode switch is in the MAG position Magnetizing field strength induction is measured in this mode GRADIOMETER the mode switch is in the GRAD position This mode measures difference between the fields strength in two points on the magnetic axis that are positioned symmetrically from the center This essentially weakens the remote power sources of magnetic field as well as other interference effects acoustic vibroacoustic etc ST131 MF is connected to the connector CH2 of the main unit 1 3 8 UHF antenna ST131 UHF A ST131 UHF A is a broadband passive antenna It is connected to the input connector UHF Converter ST131 UHF 1 4 Package The product is packed in a special impact resistant waterproof black ca
47. nt value of the process s completion in Functions of the context buttons SET FREQ set the frequency range of the automatic analysis When pressed you can select the range that was set before this function was selected CURRENT selectable setting of the initial BEGIN and ending END frequency of the analysis THRESHOLD adjust the threshold that had been set before you entered this function You can choose 1 and 5 cB START start to create a database STOP stop the operation Select the frequency range and press the START button to start the function Intermediate performance will be displayed in the fields DETECTED FREQUENCY and DETECTED NUMBER on the screen 43 After the analysis is done you will this sign on the screen The analysis is completed All the detected frequencies are saved Press any button to continue The number of the detected frequencies will be displayed If the number of the detected frequencies is unreasonably small or large you can promptly correct the threshold level the SQUELCH button and use this function again 3 5 The Scale submode This submode is intended to display the signals level in the form of a multisegment scale Press the L button to enter and exit the submode The SCALE submode is the main variant that displays signals for the RADIO channel 4 18 GHz and is an auxiliary vari
48. om the current one In order to do that you should e enter the MEMORY submode by pressing the M button e select the image saved earlier by pressing the gt and lt buttons and then load it by pressing the LOAD context button Press the ENT button on the numeric keyboard to confirm your request e press the DIFF context button 57 3 10 The DIGIT option This option is intended to detect the radio transmitting devices with the known data transmission standards and to measure the signal level of the base stations You can enter this option through the RADIO channel by pressing the DIGIT context button At that the automatic scanning will take place as well as the signal level indication of mobile devices of all standards Manual selection of the standards is also provided 1 Graphical display of the signal average level in the frequency range set by the standard 2 Pointer of the selected standard only for manual selection 3 Standards of the digital data transmission Figure 17 4 Numerical relative value of the signal level exceeding the current threshold in dB 58 TEASE a eo ENIT Functions of the context buttons BASE select the measurement of the base stations level AUTO sequentially automatically scan all standards if selected it flashes red SET FREQ press this button to measure the values of the signal band
49. only one battery compartment three batteries But operation time reduces to 1 hour In order to change the batteries unscrew the battery compartment cover using the wrench included in the set Then replace the batteries with the new ones observing the correct polarity see markings on the bottom lid of the main unit 1 6 2 UHF converter ST131 UHF UHF converter is powered by two AA batteries accumulators or by the power supply unit When the batteries are discharged constant glow of the indicator ON LOW BAT will start to flash on and off every second The life time of the Energizer type battery is at least two hours In order to change the batteries unscrew the battery compartment cover then replace them with the new ones observing the correct polarity see markings inside the battery compartment 22 1 6 3 Magnetic antenna ST131 MF ST131 MF is powered by two AA batteries accumulators or by the power supply unit The battery discharge is indicated by gradually auto dimming indicator PWR The life time of the Energizer type batteries is at least thirty hours In order to change the batteries unscrew the battery compartment cover then replace them with the new ones observing the correct polarity see markings inside the battery compartment 23 2 Control and Indicators of ST 131 2 1 Control Context buttons 4 Purpose of the context buttons F1 FS depends on the s
50. radio pulses duration and period information about frequency and level is available 82 To estimate detectivity we can provide the following numbers e The single radio pulse of 400 ms duration is detected in all modes without loss e In the FULL RANGE mode the pulse train with the pulse width of 0 1 ms and over and the duty cycle of 1 1 is detected without loss if the duty cycle is 1 100 the detection time will take about 30 sec 1 1000 over 500 sec Decrease in the analyzed band will increase detectivity If the band is 6 8 MHz or less the duty cycle is 1 1000 the detection time will be about 60 sec Use the oscillograph option see p 3 8 to detect the radio pulses if you have information about the radio pulse s carrier frequency that you got after working with the spectrum or in a different way This limitation is valid for the main unit There is no such limitation while working with the program the scanning of the selected frequency range with analysis in the time domain has been implemented In this control method there are available parameters of the registered pulse or the pulse train such as width and period 83 The PULSE function as a special case of the OSCILLOGRAPH option is preferred to detect the pulse trains of long duration Select the 64 PULSE band to activate the function This function provides e the broadest band of the simultaneous analysis that is 64
51. rovides the opportunity to promptly operate with the actual signals displayed under conditions of the saved image 3 6 2 Operation with the signal database Press RD SCAN to enter the signal database The functions of the context buttons are the following VIEW scan sequentially the saved bands of the analysis with the central frequency LIST switch to the list of the detected frequencies Press the and lt d buttons to navigate through the list Press the ENT button to confirm your request Press any button to exit DELETE delete the current frequency from the list 50 You can scan the detected frequencies in two variants e scan sequentially the SCAN button The total number of the saved frequencies and the current indicated frequency are displayed at the top right corner of the screen select from the automatically created list the VIEW button Figure 14 Figure 14 shows the frequency display format for both variants The value of the detected frequency is the center of the screen The displayed band corresponds to the band set before the detection however it cannot be over 6 8 MHz if the bigger value is set it will automatically decrease to 6 8 MHz 1 The current indicated frequency number total number of the saved frequencies 51 3 7 The Measurements submode Press the MEA button to activate this submode The functions of the context
52. s center frequencies for the 3G and WiMAX standards depends on a service provider and location Press the gt 0 lt button to set the indication threshold With that numerical values of the threshold levels are shown in the position of the level s digital display In the case of the auto scanning all standards will be zeroed in the case of manual selection only the selected one will be zeroed 59 You can also manually set the threshold level by pressing the and buttons with the displayed threshold current value Press the gt and lt buttons or rotate the VALCODER to manually set the necessary Standard Press the AUTO context button to switch to the manual mode the button backlight will change to black or press any of these gt and lt buttons The signal level of the terminal devices and the base stations of the given standard is indicated by the following complementary criteria e Detecting of radio frequency emission in the frequency range of the terminal devices or the base stations of the given standard e Correspondence of the detected signal s time parameters to the given standard except for CDMA and 3G Press the MEA button to switch to the oscillogram of the selected signal The default display settings are optimized for this signal 60 3 11 The NONLINEAR JUNCTION DETEC TOR option only for ST 131N This option is intended to check the phone line and t
53. se dimensions are 400X304X165 Special polyurethane foamed lodgements are installed to provide comfortable and safe placement of the product s components in the case Components are placed as shown in the picture below 1 Power supply unit 2 items 2 Main unit 3 UHF Converter ST131 UHF 4 Alligator clips 5 Set of probes Ground cable a telescopic antenna 6 Wire line adapter ST131 AWL 7 SHF antennae detector T131 SHF 8 Infrared sensor ST131 IF holder 9 Tripod 10 8 AA batteries a hex wrench 11 USB cable 18 1 Main unit shoulder strap 2 Headphones 3 Main unit support 4 UHF antenna ST131 UHF A ma 1 5 Detection channels ST 131 has four detection channels Detection channel Frequency range RADIO 30 4100 MHz 4000 18000 MHz Hz WIRE 0 01 30 M 0 3 15 kHz OPTICAL 770 1650 nm COUSTOELECTRIC 0 01 125 kHz Press the SET button and select the line Channel Selection in the Menu to access the list of the channels 1 5 1 Radio Channel This channel receives and processes radio signals within the frequency range 30 18000 MHz Use UHF converter ST131 UHF UHF antenna ST131 UHF A to operate within the frequency range 30 4100 MHz SHF detector ST131 SHF expands the frequency range up to 18 GHz 1 5 2 Wire channel This channel receives and processes the signals transmitted by the wire lines of different purposes electri
54. sound reproduction and if the detected signal s band width is visually obviously smaller decrease the demodulation band the BAND DMD context button Access to fine setting of the signal frequency the i Figure 26 FINE context button provides more accurate adjustment than that of the cursor lines After pressing this button the signal center frequency is tuned in the step set in the INFORMATION window the INF button the STEP DMD context button of up to 1 Hz The volume control has limited possibilities as the method that identifies the state of the art STM The classic STM created with the help of analog modulation methods in most cases it is the frequency modulation can be identified without fail The volume control is also useful in creation of the legal broadcasting and communications radio stations archive 77 The Acoustic feedback method also has limited possibilities The method is based on appearance of the positive acoustic feedback between the microphone of the radio transmitting STM and the speaker of the ST 131 main unit if you are using this method set the volume level at least s of the maximum value This effect is only applied for radio microphones with general modulation types amplitude and frequency narrow range or wide range And in the case of the frequency modulation the effect is based on the presence of the incidental amplitude modulation in the frequency modulate
55. spectrum in the product s permanent memory and then use it as a reference signal for subtraction see p 3 9 In this case for example when you re examine the area you do not need to subtract the signal beforehand the reference signal is selected from the memory in any place of the examined area This option is also useful when you are searching for a nonstationary signal source For example the STM with acoustic start remote control automatic accumulation and subsequent transmission of data in indefinite period of time In order to detect the above mentioned STM switch on this function do not move ST 131 in the examined premise and control the signal appearance Figure 23 72 Sequentially go round the premise to detect the radio transmitting STM The UHF converter and the UHF antenna should be oriented in different planes and turned in a smooth slow manner The distance between the antenna and interior objects depends on the assumed radiant power of the STM and if possible should be minimal We can give the following approximate number to estimate the distance when operating in this mode the distance for positive detection of the narrow range STM of 1 mW is about 10 cm Approaching the signal source you will see a spectrum line or lines superimposed on the subtracted spectrum Fig 23 shows the detection of the narrow range signal DIGIT is an important context button that provides access to the DIGIT
56. stic signal without a carrier Use the MEASUREMENTS function the MEA button to visually estimate the detected signals Press the MEA button to switch to the OSCILLOGRAPH option p 3 7 with indication of the detected signal s time parameters Further if necessary press the SPECTRUM context button to switch to the signal spectrogram you can use possibilities of the FULL RANGE BAND and DEMODULATION modes 99 Additional recommendations There are two main variants of information leakage with the use of infrared radiation One of them is created using the STM transmitting intercepted information in the infrared band The second variant is based on radiation of window glasses by a directive beam of the infrared source as well as on reception of a reflected signal modulated by the premise acoustics Particular characteristic of the infrared STM is the need to provide the line of site between the transmitter and the receiver of infrared radiation That is why the transmitter radiation could get outside the premise through the windows or directly from them if the transmitter is installed right in the window Considering these characteristics the promise s windows should be the starting place in your search for compromising signals Use the SPECIAL HOLDER see p 1 3 5 1 to detect the STM installed in the windows Install the IR sensor on the holder direct the receiver part of t
57. the INFO button to view the information Span frequency step 10 kHz Demodulation band 10 kHz Demodulation band frequency 100 GHz step In general the sequence of the modes usage correspond to the RADIO channel There is an access to the OSCILLOGRAPH option in the FULL RANGE mode that allows for example to promptly test the received signal for presence of pulse components In order to connect the lines using the RJ 45 connector see p 1 4 check all possible combinations of the wire pairs If the line has a terminal unit for example a telephone set we recommend to provide a point to point connection of the adapter and check the condition of all taken wire pairs when the phone is lifted and put down Use the SCALE submode to view the signal level in the form of a multi segment scale Fig 41 shows the screen image that you will see after pressing the L button LEVEL INDICATOR WIRE 001 30 MHz CURRENT PAIR 4 5 FULL BAND et eat avi eG i 8 fal Pa i HY E BY wi ad bel ra ia Figure 30 Use additional capabilities of the SCALE submode in this channel to automatically check the wire pairs of the RJ 45 connector Press the PAIRS context button Fig 30 shows the screen image that depicts the automatic sequential control of the signal level in all possible pairs of the RJ 45 connector 4 eae eee J ZAESSTSS4 SOT EASA TESST EE TETAS Figure 31 e 1
58. tion and in the detection range 79 Press the buttons to sequentially view the range segments with the set band Also press these buttons to switch to the next or previous segment of the range In the BAND mode you can selectively view by typing the value of the center frequency span the SET FREQ button on the numeric keyboard or by setting the cursor lines on the segment of interest and then pressing the VALCODER to confirm your request Thereafter if you need to increase the resolution and or the signal to noise ratio you can always change the transmission band value by pressing the BND button the change will be made relatively the center frequency To detect the low power narrow range signals of the STM located in the frequency domain near the power legal radio frequency radiation sources you need to give special attention to these frequency ranges In order to do that you should use the values of the analyzed band of at least 6 8 MHz Fig 28 depicts the screen with the narrow range signal located in a close proximity to the signal 80 of the base station GSM 900 In this example the analyzed band value is 6 8 MHz If the values are large the signal will not be detected Detection of the FHSS signals is connected to the analysis of the signal fragments appeared in different frequency domains during operation time of the STM Use the SCALE submode see p 3 5 to detect the signal sourc
59. titious obtaining of information as well as to indicate natural and artificial information leakage channels ST 131 is able to detect the following main types of STM 3 Radio emitting STM particularly e Radio microphones including devices for data storage and transmission so called impulse STM and for Frequency Hopping Spread Spectrum FHSS Telephone re transmitters Radio stethoscopes Video cameras equipped with radio transmitter Unauthorized mobile telephones and modems of CDMA GSM UMTS DECT standards as well as devices using digital transmission channels of WLAN and BLUETOOTH standards STM that include devices designed for spatial high frequency irradiation e Radio beacon intended to track moving objects STM that transmit data through wire lines e field lines of AC main subscriber telephone lines lines of fire and burglar alarms STM that transmit data within infrared frequency band STM that transmit data within ultrasonic frequency band ST 131 designed to detect the following natural and artificial information leakage channels Acoustic data transmission channel occurred e as a result of acoustoelectric conversion microphonic effect in wire lines of different purposes e due to absence or lack of noise insulation in the examined premises 1 2 Configuration of ST 131 Basic set e Main unit e UHF Converter ST131 UHF Wire line adapter ST131 AWL UHF antenna ST131 U
60. y value of the oscillator In this case the time values of the envelope s cursory measurements are always true 53 Functions of the context buttons INTERVAL activate the mode of the relative cursory measurements Press the button and rotate the VALCODER the auxiliary cursor will appear on the screen RUN activate the display updating if selected it flashes red PAUSE pause the drawing of the image if selected it flashes red 3 8 The Oscillograph option This option is intended to analyze the signals in the time domain Press the MEA button and then press the OSC context button to enter this option The option is unavailable from the FULL RANGE mode of the RADIO channel and the bands values of more than 65 MHz in the BAND mode of this channel 54 1 The time segment value per 1 indication point 2 The adjustment frequency value 3 The time segment length on the full screen 4 The vertical time base value 5 The mean square value of the signal level 6 The Peak to peak value of the signal level Functions of the context buttons SPECTR switch to the spectrogram Press sequentially F3 to select the following functions HORIZON activate an access to change the time base horizontally Rotate the VALCODER to change it FREQ activate an access to change the central frequency value of the examined signal s band on
61. z1 2 in the frequency of 1000 GHz at least 112 NONLINEAR JUNCTION DETECTOR Test signal frequency kHz 150 220 MAIN UNIT Dimensions mm 190x97x50 Indication 3 5 240x320 262144 colors Interface USB 2 0 20 Mbit s Input current A 0 4 0 6 Power supply 6 batteries accumulators AA 113 7 Acceptance Certificate Multifunctional detection device ST 131 Ne satisfies technical requirements of TU Russian TY 6684 09 67533935 10 and is ready for use Date of manufacture L S 114 8 Warranty obligations 8 1 The Manufacturer warrants that every product meets all specification requirements and workmanship for a period of 12 months from the date of sale 8 2 The Manufacturer is obliged to repair the product its accessories and additional parts at no charge to you within the warranty period as well as replace the device if it failed to function or its characteristics do not satisfy the specifications 8 3 No charge will be made for repair adjustment or replacement of the product if the Buyer observes the operation instructions transportation and storage conditions if the product and its accessories have not been damaged and if the warranty card is filled out correctly 8 4 This warranty shall only apply to the product if the Buyer provides the warranty card with the note of sale made by the Manufacturer and its Dealer as well as certified by an official round stamp of a Standard pattern 115

ST 131 “PIRANHA – II” ST 131N - TS

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ST 131 &ldquo;PIRANHA &ndash; II&rdquo; ST 131N - TS

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ST 131 “PIRANHA – II” ST 131N - TS