PRODIG-5 - Test Equipment Depot
Contents
1. 12 Figure 4 Main keyboard e TV KEY It allows visualising the image of TV corresponding to the input signal as well as data relative to the reception of the video signal Key number 1 to enter numeric data 2 asc EXTERNAL UNITS POWER SUPPLY Enables selecting the power supply to the external units Available voltages are External 5 V 13 V 15 V 18 V and 24 V for the terrestrial band and External 5 V 13 V 15 V 18 V 13 V 22 kHz and 18 V 22 kHz for the satellite band Key number 2 to enter numeric data I en DEF MEASUREMENTS Enables the type of measurement to be selected The types of measurements available depend on the band the standard and the operating mode Key number 3 to enter numeric data 09 2005 Page 21 4 13 aii SPECTRUM TV Allows switching between any previous operating mode and the Spectrum Analyser mode and viceversa Key number 4 to enter numeric data 5 _ SJ 14 JKC SATELLITE TERRESTRIAL BAND Allows switching between the Satellite or Terrestrial TV frequency band Key number 5 to enter numeric data 15 S This led remains lighted when the equipment works with the frequencies and the corresponding channels to the satellite band 16 T This led remains lighted when the equipment works with the frequencies and the corresponding channels to the terrestrial band ar D A 17 lt MEASUREMENT CONFIGURATION I2. 1x AD 055 F F BNC F adapter 1x AD 056 F F DIN F adapter 1x AD 057 F F F F adapter 1x AL 103 External DC charger 1x DC 261 Carrying bag 1x AA 103 Car lighter charger 1x CA 005 Mains cord OPTIONAL ACCESSORIES DC 299 Transport suitcase Page 8 09 2005 2 SAFETY RULES A 2 1 General safety rules Use this equipment connected only to systems with their negative of measurement connected to ground potential X The AL 103 external DC charger is a Class I equipment for safety reasons plug it to a supply line with the corresponding ground terminal X This equipment can be used in Overvoltage Category I installations and Pollution Degree 2 environments External DC charger can be used in Overvoltage Category Il installation and Pollution Degree 1 environments When using some of the following accessories use only the specified ones to ensure safety Rechargeable battery External DC charger Car lighter charger cable Power cord X Observe all specified ratings both of supply and measurement Remember that voltages higher than 60 V DC or 30 V AC rms are dangerous Use this instrument under the specified environmental conditions When using the power adaptor the negative of measurement is at ground potential Do not obstruct the ventilation system of the instrument Use for the signal inputs outputs specially when working with high levels appropriate low radiation cables X Follow the cleaning instructio
3. is defined according to the symbol length 1 4 1 8 1 16 1 32 To modify its value by turning the rotary selector 1 place the marker over the Guard Interval field and then press it a menu with the available values will appear Turning the rotary selector 1 select the desired value and finally press it to validate 3 Channel BW channel bandwidth Enables the channel bandwidth to be selected between 8 MHz 7 MHz and 6 MHz The selection of this parameter is essential for the correct operation of the tuner as it affects the frequency separation of the carriers 4 Spectral Inv spectral inversion This option enables spectral inversion to be applied to the input signal though in the majority of cases it should be in the OFF position not inversion This configuration menu shows besides the user definable COFDM signal parameters the value of the rest of signal parameters detected automatically Code Rate Also known as Viterbi ratio defines the ratio between the data bits number and the total number of bits transmitted the difference corresponds to the number of control bits for the error detection and recovery Modulations Carriers modulation It also defines the system noise immunity QPSK 16 QAM and 64 QAM Hierarchy The DVB T norm contemplates the possibility to make a TDT transmission with hierarchical levels it is to say a simultaneous transmission of the same program with different image qualities and noise protec
4. a 13 key to activate the signals sweeping A 3 Press P to modify the reference level in the vertical axis ds af 4 Press 6 to modify span in the horizontal axis STEP 7 Video signal monitoring Ne T 1 Select the terrestrial frequency band ski 14 0 mm 2 Tune the channel or frequency 24 that is desired to visualize on screen 3 utp 3 Verify that the equipment receives an appropriate signal level ver 12 1 4 Press e 10 key to visualise the TV image if the channel is digital press W 6 and place the cursor on the Service Identifier field and press the rotary selector 1 to obtain the available list of services 09 2005 Page 17 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Page 18 09 2005 5 OPERATING INSTRUCTIONS WARNING The following described functions could be modified based on software updates of the equipment carried out after manufacturing and the publication of this manual 5 1 Description of the Controls and Elements Front panel 1 2 g 4 5 CB ee ny Ss i ah 6 7 ABC 8 DEF 9 GHI 0 JKL Kis EP g VA oa J MNO PQRS TUV WXYZ t lt gt PRODIG 5 UNIVERSAL TV EXPLORER Figure 3 Front panel 1 Rotary selector button This has many different functions Equipment power on off tuning control moving between the various on screen menus an
5. scene cucnaend seigesiceneeedetscpaseeseeusedcinesscaes 14 4 QUICK USER ee 15 5 OPERATING INSTRUCTIONS rnvnrvnvenvenvervesvnsenververenvenvenvervesvssenververesvensenvervesennenee 19 5 1 Description of the Controls and Elements wee 19 5 2 Adjustment of Volume and Monitor Parameters rrrrrnnvnnnnnrrnnrnnrnnnnnnnnennr 1 26 5 3 Selecting the Operation Mode TV Spectrum Analyser Measurements 27 5 4 Channel Tuning Frequency Tuning muvenvvrvvrvnrvnvrvervnrenvenvenvenresrnservereenen sn 5 5 Automatic Transmission Search u msnsenvnnverrnranennenververensenvervensanensene 28 5 6 Selecting the measurement configuration Analogue Digital signal 28 5 7 External Units Power Supply rrrvnrnrnnvrnvnnnvrnrnrnnnnrnnvnnnrrnvnnnernvnrnernenner 28 5 8 Automatic signal identification function AUTO ID essersi 29 5 9 Channel plans siessen nicieni enean aiae araa ENa r Eara 5 10 Spectrum exploration function EXPLORER 3 5 11 Measurements configuration urervvrvverververnvnnvenvvnnvenvensverversvnrvervenseervesesvrenser 5 11 1 DVB C QAM Digital Channel Configuration 0 0 0 0 cece eee eee 5 11 2 DVB T COFDM Digital Channel Configuration ack 5 11 3 DVB S QPSK Digital Channel Configuration cece eee eee eee 5 12 Selecting the Measurements uumrruruvvnvvrverververenvenverrarensenvervesvesensenerversensnr 5 12 1 Analogue TV Measuring the Video Carrier Level 38 5 12 2 Analo
6. ANALOG PAL BG NO SIGNAL FOUND 12 101 PROCESS SUCCESSFUL SAVE AS PROMAX_01 Figure 10 Spectrum exploration screen EXPLORER Whenever the process detects new parameters for some channel it will create a new channel plan containing the detected information NOTE In the case that is desired to explore or identify DVB C signals will be necessary to select previously DVB C standard as digital signal identifier by means of tuv 22 PREFERENCES menu 5 11 Measurements configuration With the aim of taking the measurements of all types of signals some times could be necessary that user enters parameters relative to particular characteristics of these signals whether an automatic detection has not been possible or these parameters differ from the standard corresponding ones D a Press the Measurements Configuration lt 17 key to access to the CONFIGURATION menu and turn the rotary selector 1 to access to parameters whichare by the user Page 32 09 2005 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 5 11 1 DVB C QAM Digital Channel Configuration D Press the Measurements Configuration 17 key to access to the CONFIGURATION menu and turn the rotary selector 1 to access the QAM signals parameters which can be defined by user and described below 1 Modulation It defines the modulation type When selecting this funct
7. B C or DVB T used by AUTO ID and EXPLORER functions Min Ter Power Minimum level of digital signal to display Between 0 0 dBuV and 130 0 dBuV Min Ter Level Minimum level of analogue signal to display Between 0 0 dBuV and 130 0 dBuV Min Sat Power Minimum level of digital signal to display Auto Power Off Activates the automatic power off mode 09 2005 Page 23 AXPROMAX USER S MANUAL PRODIG 5 23 24 25 Time Power Off Select the power off timeout between 1 and 120 minutes Units Select the measurements units dBuV dBmV or dBm Rotary Selector Select the movement sense CW clockwise or CCW counterclockwise Exit Exit from preferences menu Key number 8 to enter numeric data 9 4 wxyz ANTENNA ALIGNMENT Tool for faster sweep antenna alignment at terrestrial and satellite bands Displays the measurements by means of a graph level bar Key number 9 to enter numeric data 0 _ TUNING BY CHANNEL OR FREQUENCY Switches tuning mode between channel and frequency In channel mode the tuning frequency is defined by the active channels table CCIR Key number 0 to enter numeric data lt AUTO ID EXPLORER Activates the automatic identification function short pulsation The instrument will try to identify the signal under test First it recognises whether the signal is an analogue channel or a digital one If the channel is analogue it determines the televisi
8. QPSK COFDM all the associated parameters such as the modulation system carriers 2k 8k symbol rate code rate etc and determines the value of the signals under test Whenever the process detects new parameters for a channel or frequency will create a new channel plan containing the detected information NOTE In the case that is desired to explore or identify DVB C signals will be necessary to select previously a DVB C standard as digital signal identifier by means of 22 PREFERENCES menu 5 9 Channel plans As much the signal automatic identification process as the exploration of the frequency spectrum could yield the generation of new customised channel plans relative to the usual work locations of the meter equipment In this way the characterisation of the band will be more fast and simple when causing that the equipment only analyses a shorter set of channels Page 30 09 2005 Whenever a new process of exploration is activated the PRODIG 5 analyses all the present channels in the active channel plan which acts as pattern channel plan specified by means of the option CHANNEL SET from configuration measurement D a menu CONFIGURATION 17 If during exploration or automatic identification process the EXPLORER detects new parameters for some channel or frequency a new list will be generated with the information updated and will be saved with the same name of the original channel plan followed by the extensio
9. RER provides the BER after Viterbi VBER BER before FEC MER CSI BER after Viterbi COFDM TUNER DEMOD VITERBI REED SOLOMON gt Figure 21 COFDM reception system es DVB T COFDM VBER lt 1 0E 4 5 FREQ 650 00 MHz 3 kHz CH Figure 22 Screen of BER measurement COFDM signals VBER 09 2005 Page 45 The BER measurement is provided in scientific notation i e 3 1 E 7 means 3 1x10 that is to say 3 1 average value of wrong bits of each 10000000 and through a graphic bar as its length is smaller the signal quality will be better The analogue representation is done on a logarithmic scale not linear that is to say the bar divisions correspond to the exponent of the measurement With the aim to have a reference about the signal quality it is considered that a system has a good quality when it decodes less than one non correctable error for every transmission hour This border is known as QEF Quasi Error Free and it corresponds approximately to a BER after Viterbi of 2 0E 4 BER 2 0x1 0 that is to say 2 wrong bits of each 10000 This value is marked on the measurement bar of the BER and therefore BER for acceptable signals must be at the left side of this mark Finally it is shown a status line with information about the detected signal The possible messages that can appear and its meaning are showing the following list The messages are exposed from less to more fulfilment of the MPEG 2 stan
10. ROMAX TFT colour 5 inches PAL SECAM and NTSC M N B G I D Kand L Variable span dynamic range and reference level by means of arrow cursors 40 dBuv for correct synchronism Scart 1 Vpp 75 Q positive video Scart 75 Q Scart Built in speaker Scart TV PAL SECAM NTSC system according to DVB T DVB C DVB S and MPEG standards 50 us Digital frequency synthesis according to the TV standard For service and calibration Through the RF input connector External or 5 13 15 18 24 V Selectable in satellite band 0 6 V 02 V 22 kHz 4 kHz 5W According to DiSEqC 1 2 standard 7 2 V 11 Ah Li lon battery gt 3 5 hours in continuous mode 3 hours up to 80 instrument off 12V 35 W 3 DISEQCTM is a trademark of EUTELSAT 09 2005 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Page 7 Auto power off Programmable After the selected amount of minutes without operating on any control Deactivable OPERATING ENVIRONMENTAL CONDITIONS Altitude Up to 2000 m Temperature range From 5 to 40 C Automatic disconnection by excess of temperature Max relative humidity 80 up to 31 C decreasing lineally up to 50 at 40 C MECHANICAL FEATURES Dimensions 230 W x 161 H x 76 D mm Total size 2 814 cm Weight 1 9 kg without holster INCLUDED ACCESSORIES 1x CB 044 Rechargeable Li battery 7 2 V 11 Ah
11. Test Equipment Depot 1 800 517 8431 PRODIG 5 EXPLORADOR UNIVERSAL DE TV UNIVERSAL TV EXPLORER ml amp ANS HKS es o o WE ET pg pRODIG 5 UNIVERSAL TV EX DREA SAFETY NOTES Read the user s manual before using the equipment mainly SAFETY RULES paragraph The symbol A on the equipment means SEE USER S MANUAL In this manual may also appear as a Caution or Warning symbol Warning and Caution statements may appear in this manual to avoid injury hazard or damage to this product or other property 99 Washington Street Melrose MA 02176 Fax 781 665 0780 TestEquipmentDepot com 0 MI1384 J PROMAX TABLE OF CONTENTS 1 GENERAL irinin aara aa E A aa aE A unset EEA ENAA aaaea Ea aA 1 1 1 Description ii 1 2 SPOCHICALIONS 2 ccsceecscteascadccenacgs cueanesieeecusus edccans fenanet scwuageditacuuces ge iieaeoe 4 2 SAFETY RULES une sive tint nektet kanne eddik iA 2 1 General safety rules sses 2 2 Descriptive Examples of Over Voltage Categories 3 INSTALLATION cos cciscsscencsatscessteicqececaceaceuadstsansivansatedencqncnvedaxcanstiscearvacesusetsansavaevensacat 13 3 1 Power Supply 13 3 1 1 Operation using the External DC Charger 13 3 1 2 Operation using the Battery 0 0 0 18 3 1 2 1 Battery Charging iaiscccciecsiscccccseccassssascatad cstcustiesscteeseustacsactecseatecaatectiaen 14 3 2 Installation nd Start Up i v ccccecsecsecessesdscenasns
12. as QEF Quasi Error Free and it corresponds approximately to a BER before FEC of 2 0E 4 BER 2 0x1 0 that is to say two incorrect bits of every 10 000 This value is marked on the measurement bar of the BER and therefore BER for acceptable signals must be at the left side of this mark Below the BER analogue bar it is shown the tuned frequency or channel and the frequency deviation in kHz between the tuned frequency and the one which optimizes the BER i e 800 00 MHz 1 2 kHz This deviation must be adjusted specially from the C N measurement in satellite band by tuning again the channel in frequency mode 24 to the lower reachable value 5 12 5 2 DVB T signals Once determined the parameters of COFDM signal it will be possible to measure BER Two types of measurements appear Following is shown the BER measurement before the error corrections BER before the FEC CBER Page 44 09 2005 FREQ 650 00 MHz 3 kHz Figure 20 Screen of CBER measurement COFDM signals In a reception system of terrestrial digital signal after the COFDM decoder two error correction methods are applied Obviously each time we apply an error corrector to the digital signal the error rate changes therefore if we measure the error rate at the output of the COFDM demodulator at the output of the Viterbi decoder and at the output of the Reed Solomon decoder we obtain nothing more than different error rates The PRODIG 5 EXPLO
13. available functions in the future That means to incorporate new benefits without additional cost For example the test of satellite signals distribution networks The use in combination with an IF generator allows to carry out an easy verification of the installations before the operation beginning The spectrum analyser features with high accuracy resolution sensitivity and sweep speed can do the instrument very useful for applications as the installation of antennas or the detection of complex impulsional noise events It presents an innovative control system based on four arrows that makes the use of the spectrum analyser very intuitive The arrows allow adjusting the reference level by steps of 10dB and the frequency margin span on screen Page 2 09 2005 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Also the meter incorporates a DiSEqC command generator and permits to supply different voltages to the external unit 5 V 13 V 15 V 18 V 24 V and includes an EUROCONNECTOR or Scart connector for audio video input output The PRODIG 5 is powered by rechargeable battery or connected to the mains through the supplied external DC power charger It incorporates a RS 232C interface which enables to carry out the checking setup and calibration processes This instrument due to its extreme compact design technical specifications and low cost becomes the re
14. channel must be tuned at its central frequency MER Modulation error ratio CBER BER measurement Bit error rate for the digital signal before error correction BER before FEC VBER BER measurement Bit error rate for the digital signal after error correction BER after Viterbi Satellite band Analogue channels Level Level measurement of the currently tuned carrier C N Ratio between the modulated signal power and the equivalent noise power for a same bandwidth 09 2005 Page 37 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com Satellite band Digital channels DVB S Channel Power Automatic method C N Ratio between the modulated signal power and the equivalent noise power for a same bandwidth MER Modulation error ratio CBER BER measurement Bit error rate for the digital signal before error correction BER before FEC VBER BER measurement Bit error rate for the digital signal after error correction BER after Viterbi 3 In order to change the measurement mode press per 12 key On the monitor will appear cyclically all the measures available for the tuned signal 5 12 1 Analogue TV Measuring the Video Carrier Level In the measurement mode of analogue signals the PRODIG 5 EXPLORER monitor can work as an analogue indicator of level representing the signal present in the input 3 In order to change the measurement mode pr
15. cted 7 Request to Send RTS 8 Clear to Send CTS 9 Ring Indicator not connected Table 4 Description of the RS 232C connector 09 2005 Page 55 AXPROMAX USER S MANUAL PRODIG 5 6 3 Scart DIN EN 50049 201816141210 8 6 4 2 N SFT wrrr pE 21 19 17 15 13 11 9 7 5 3 1 Figure 33 Scart socket external view Also known as PERITEL connector in conformity with standard NF C92250 The signals in this connector are the following PIN number Page 56 SIGNAL Right channel audio output Right channel audio input Left channel audio output Audio grounding Blue grounding B Left channel audio input Blue output B Switching voltage Green grounding G Digital bus interface Green output G Digital bus interface Red grounding R Digital bus reserved Red output R Blanked signal Composite video grounding Blanked return Composite video output Video input Connector shield grounding CHARACTERISTICS not connected not connected not connected not connected not connected Table 5 Description of the Scart 09 2005 7 MAINTENANCE AN 7 1 Considerations about the Screen This paragraph offers key considerations regarding the use of the colour screen taken from the specifications of the manufacturer In the TFT display the user may find pixels that do not light up or
16. ctral inversion Hierarchy QAM SIGNAL PARAMETERS Demodulation Symbol rate Roll off a factor of Nyquist filter Spectral inversion QPSK SIGNAL PARAMETERS Symbol rate Roll off a factor of Nyquist filter Code Rate Spectral inversion VIDEO Format Services decoding AX PROMAX 2k 8k Selected by the user 1 4 1 8 1 16 1 32 Selected by the user 1 2 2 3 3 4 5 6 7 8 QPSK 16 QAM 64 QAM Selectable ON OFF Indicates hierarchy mode 16 32 64 128 256 QAM 1000 to 7000 kbauds 0 15 Selectable ON OFF 2 to 45 Mbauds 0 35 1 2 2 3 3 4 5 6 7 8 and AUTO Selectable ON OFF MPEG 2 DVB MP ML Service list and PIDs ANALOGE SIGNALS MEASUREMENT LEVEL MEASUREMENT Measurement range Terrestrial TV amp FM bands Satellite TV band Reading Digital Analogue Measurement bandwidth Audible indicator 09 2005 10 dBpV to 120 dBuV 3 16 uV to 1 V 30 dBuV to 120 dBuV 31 6 uV to 1 V Auto range reading is displayed on an OSD window Absolute value calibrated in dBuV dBmV or dBm Relative value through an analogue bar on the screen 230 kHz Terrestrial band m 4 MHz Satellite band maximum band ripple 1 dB LV audio A tone with pitch proportional to signal strength Page 5 AXPROMAX Accuracy Terrestrial bands Satellite band Overrange indication MEASUREMENTS MODE Terrestrial bands Analogue channels Digital channels Satellite band Analogue channels Digi
17. d sub menus and validation of the different options In order to power on the equipment hold the rotary selector pressed for more than two seconds until the presentation screen appears 09 2005 Page 19 2 3 4 5 6 7 8 In order to power off the meter hold the rotary selector pressed Tuning purposes turning it clockwise frequency increases while turning it anticlockwise frequency decreases To move along the on screen menus turning it clockwise active option moves downwards while turning it anticlockwise active option moves upwards EXT VIDEO Video signal presence light indicator It lights up when video on screen is coming through the SCART connector 35 DRAIN External units power supply indicator Lights up when the PRODIG 5 EXPLORER supplies a current to the external unit CHARGER External DC charger operation indicator When batteries are installed the battery charger is automatically activated SENSOR Sensor of environmental luminosity allows automatic adjusts of the display contrast and brightness contributing to the battery saving a lt gt y CURSORS Allow adjust in the Spectrum Analyser mode of the reference level and the margin of frequencies to represent span As well as the movement through the different menus and submenus that appear in the monitor MONITOR MAIN KEYBOARD 12 keys to select functions and entering alphanumeric data Page 20 09 2005 10 11
18. dard No signal received No signal has been detected Timing recovered Only it is possible to recuperate the symbol time AFC in lock The system automatic frequency control can identify and lock a digital transmission TDT but its parameters can not be obtained It can be due to a transitory situation previous to the TPS identification Transmission Parameter Signalling or well to a TDT transmission with an insufficient C N ratio TPS in lock The TPS Transmission Parameter Signalling are decoded The TPS are carriers 17 in the 2k system and 68 in the 8k system modulated in DBPSK containing information related to the transmission modulation and codification Modulation type QPSK 16 QAM 64 QAM Hierarchy Guard Interval Viterbi Code Rate Transmission mode 2k or 8k and Number of the received frame MPEG 2 Correct detection of a MPEG 2 signal 5 12 5 3 DVB S signals Once determined the parameters of QPSK signal it will be possible to measure BER Following is shown the BER measurement before the error corrections BER before the FEC CBER Page 46 09 2005 DVB S QPSK CBER 3 3E 2 4 FREQ 1479 0 MHz kHz DL MHZ cH i Figure 23 Screen of CBER measurement QPSK signals In a digital reception system for satellite signals after the QPSK decoder two different correction methods are applied see following Figure Obviously each time we apply an error corrector to a digital signal the e
19. de rate etc and determines the value of the signals under test The PRODIG 5 includes the main TV standards M N B G I D K and L adopting apart from the characteristic parameters of the standard the correcting automatic system to obtain in all the cases an accurate measuring of the input signal level It admits any TV system PAL SECAM and NTSC and allows the user to work directly with digital TV signals decoding them so that the television image may be viewed and directly measuring the power carrier noise ratio C N the bit error rate BER and the modulation error ratio MER as well for DVB T COFDM as DVB S QPSK and DVB C QAM signals Being a multistandard instrument it can be efficiently used in any country of the world 09 2005 Page 1 Includes a symbol based keyboard that allows the direct access to the various functions that are displayed simultaneously on screen The PRODIG 5 makes a dynamic exploration of the spectrum detecting all the channels in the explored band this applies for the terrestrial and the satellite television bands The meter locates all the channels in the spectrum with no need of any previous information about the number of channels the type of signals transmitted or their characteristics With the data collected after each exploration it creates a register that contains tables of channels that can be independent for each system or installation At any time the measurement session
20. de there are two ways of tuning 1 Turning the rotary selector 1 Turning the rotary selector 1 selects the desired frequency tuning is continuous from 45 to 865 MHz and from 950 to 2150 MHz When turning it clockwise frequency increases while turning it anticlockwise frequency decreases 2 Using the keyboard Press the rotary selector 1 the frequency listing will disappear and will appear on the upper left corner of screen the keyboard symbol of manual data entry 123 next enter the frequency value in MHz using the numeric keyboard The EXPLORER will calculate the tuneable frequency closest to the entered value and then display it on screen 09 2005 Page 27 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 5 5 Automatic Transmission Search Holding pressed the 25 key search starts until it finds a transmission with a level higher than the search level The threshold level is defined by means of the Min Ter Level for analogue channels and Min Ter Power Min Sat Power for digital channels from PREFERENCES menu 5 6 Selecting the measurement configuration Analogue Digital signal Measuring the characteristics of a channel depends in the first place on the type of modulation analogue or digital D Use key 20 to switch between analogue and digital channels Press the D 20 key to show the measurements CONFIGURATION menu and sel
21. ect the Signal option by turning and pressing the rotary selector 1 The Signal option allows setting the type of signal to measure When switching to a new type the PRODIG 5 EXPLORER activates the last measurement configuration used for that type of signal 5 7 External Units Power Supply The PRODIG 5 EXPLORER can supply the voltage needed to power the external units antenna preamplifiers in the case of terrestrial TV LNB in the case of satellite TV or IF simulators A Maximum input levels DC to 100 Hz 50 Vrms powered by the AL 103 power charger 30 Vrms not powered by the AL 103 power charger 45 MHz to 2150 MHz 130 dBuV In order to select the supply voltage of the external units press asc 11 key and the screen will display a functions menu labelled EXT SUPPLY listing the choice of voltages which will depend on the band being used Turn the rotary selector 1 to the desired voltage and press to activate it The following table shows the choice of supply voltages Page 28 09 2005 SATELLITE External 5V 13V 15V 18 V 24 V 13 V 22 kHz 18 V 22 kHz TERRESTRIAL External 5V 15V Table 3 External units powering voltages In the External power supply mode is the unit powering the amplifiers before the antenna terrestrial television or the satellite TV receiver house hold or community also powers the external units The DRAIN 3 indicator lights when current is flowing to the externa
22. entation and position of the receiving antenna This is particularly important in UHF Because such frequencies are involved with wavelengths ranging from 35 cm to 65 cm if the antenna is shifted only a few centimetres the relationship between the picture chrominance and sound carrier frequencies change affecting the quality of the picture in the receiver If there is an excess of sound carrier tearing or moir may appear on the screen due to the frequency beats between the sound chrominance and the picture frequencies If there is a chrominance carrier defect then the television colour amplifier must function at maximum gain which could result in noise appearing all over the television screen with points of colour that disappear when the saturation control is reduced in an extreme case loss of colour may occur 5 13 1 Markers Only in Spectrum Analyser mode The marker in red colour indicates the central frequency or tuning frequency which can be moved by means of turning the rotary f selector 1 as well in channel as in frequency tuning mode 24 When monitoring a digital signal spectrum also appears two additional markers in white colour which indicate the bandwidth of the digital channel See previous Figure 5 14 TV Operating Mode 1 When pressing the e 2 key from any mode of operation the PRODIG 5 EXPLORER accedes to the TV mode and tries to demodules on the monitor the currently tuned vid
23. eo signal In the monitor will appear the TV picture with a window on the lower part to show for five seconds in the case that the signal is analogue the channel number the frequency the active canalization the colour system and the TV standard If the signal is digital it shows for about fifteen seconds the following parameters channel number frequency active channel plan type of DVB signal service network video program identifier VPID and audio program identifier APID 09 2005 Page 51 After few seconds only the TV image appears on screen If the transmission is not codified on the lower right corner a FREE indication is showed or otherwise states COD Also the standard MPEG 2 profile is indicated which determines the compression rate for the digital service decodified the level of image resolution 4 3 the resolution rows x columns for received video and the picture refreshment frequency rate The information window previously described will appear whenever the rotary selector is pressed again 1 CHANNEL CCIR FR2 FR 168 25 MHz Figure 28 Analogue channel monitoring When a digital channel is decodified once the Table of Services SDT Service Description Table acquisition is completed is possible to accede to the list of services contained in the Table For it place the field selector by means of the vertical cursors 6 on the field of the active service e g Veo TV in the following fig
24. er Viterbi and therefore BER for acceptable signals must be at the left side of this mark Next it is shown the tuning frequency and the frequency deviation in MHz between the tuned frequency and the one which optimizes the BER i e Freq 1777 0 1 2 MHZ Finally it is shown a status line with information about the detected signal The possible messages that can appear and its meaning are shown in the following list The messages are exposed from less to more fulfilment of the MPEG 2 standard No signal received Any signal has been detected Signal received A signal is detected but it can not be decoded Carrier recovered A digital carrier has been detected but it can not be decoded Viterbi synchronized A digital carrier has been detected and the Viterbi algorithm is synchronized but too many frames arrive with non correctable errors It is not possible to quantify the BER MPEG 2 Correct detection of a MPEG 2 signal 5 12 6 Digital TV Measuring MER Once determined the suitable parameters for COFDM QAM or QPSK signal AMT reception it will be possible to measure MER press per 12 key until it appears the MER measurement screen Page 48 09 2005 DVB T COFDM 24 7 dB erre EE 10 20 650 00 MHz Z3 kHz Figure 26 Screen of MER measurement of DVB T COFDM signals First of all you will see the modulation error ratio measurement MER Analogue and digital carriers are very different in terms of
25. ess per 12 key it will appear a screen like the following one je TERRESTRIAL LEVEL 79 2 dBuV EE RE 0 20 40 60 210 100 FREQ 168 25 MHz LEVEL CH 10 C N Figure 14 Analogue signal level measurement in terrestrial band Page 38 09 2005 Turn the rotary selector 1 to change the tuning channel frequency Press the ee per 12 key to select the type of measurement to visualise on the monitor The available types of measurements are LEVEL Level indication on the upper part of the screen analogue bar C N Carrier Noise ratio measurement VIA Video Audio ratio measurement WARNING When at the RF input appear an important number of carriers with a high level the tuning circuit may become out of control giving as a result wrong level measurements To be able to determinate the equivalent level of a carrier group with similar levels at the RF input it is possible to use the expression Lj L 10 log N Ly equivalent total level L average level of the carriers group N number of carriers So if there are ten carriers with a level around 90 dBuV their equivalent level will be 90 dBuV 10 log 10 100 dBuV Observe that in this case loss of tuning by overload of the RF input may occur besides other effects such as tuner saturation and generation of intermodulation products that may mask the spectrum visualization 09 2005 Page 39 5 12 2 Analogue TV Measuring the Video Audio rati
26. ference instrument for the installer 2 DiISEQCTM is a trademark of EUTELSAT 09 2005 Page 3 AXPROMAX 1 2 Specifications AN USER S MANUAL PRODIG 5 CONFIGURATION FOR MEASURING LEVEL AND POWER TUNING Tuning modes Resolution Automatic search Explorer Signal identification RF INPUT Impedance Connector Maximum signal Maximum input voltage DC to 100 Hz 45 MHz to 2150 MHz Digital frequency synthesis Continuous tuning from 45 to 865 MHz and from 950 to 2150 MHz Chanel or frequency If or forward at satellite band Channel plan configurable on demand 45 865 MHz 50 kHz 950 2150 MHz lt 200 kHz span FULL 500 200 100 50 32 16 MHz Threshold level selectable DVB T or DVB C selection Analogue and digital Automatic 75Q Universal with BNC or F adapter 130 dBuV 50 Vrms powered by the AL 103 power charger 30 Vrms not powered by the AL 103 power charger 130 dBuV DIGITAL SIGNALS MEASUREMENT POWER RANGE COFDM QAM QPSK MEASUREMENTS DVB T COFDM Presentation DVB C QAM Presentation DVB S QPSK Presentation Page 4 45 dBuv to 100 dBuV 45 dByV to 110 dBpV 44 dBuvV to 114 dBuV Power CBER VBER MER C N Numeric and level bar Power BER MER C N Numeric and level bar Power CBER VBER MER C N Numeric and level bar 09 2005 USER S MANUAL PRODIG 5 COFDM SIGNAL PARAMETERS Carriers Guard Interval Code Rate Modulation Spe
27. gue TV Measuring the Video Audio ratio V A 40 5 12 3 Analogue Digital TV Measuring the Carrier Noise ratio C N 40 5 12 4 Digital TV Measuring the Power of Digital Channels we 2 5 12 5 Digital TV Measuring BER rresnrrnvnrvvrnvrnvervrrsverversveree 142 51251 DVB Gsiqnalsuujuasnanamnsnnnudjdiniuutmvs neset 43 5 12 5 2 DVB T signals 5 12 5 3 DVB S signals ess 5 12 6 Digital TV Measuring MER essersvervrvresvervrrsvervessrrsvervrrsverversvesvessresvesvessvene 48 513 Spectrum ANAS eccisactsdehes cteasesztsiCeveceassisesscessesatitea is SE a ERa IA ARES inaina 50 5 13 1 Markers 5 14 TV Operating MOUE issi sce csscgancivtisatsacsesacetensnesencanctudveeascnctseitactsccsesagheaneannacid 51 5 15 Antenna Alignment Function us enannavrsnnnnnsanvnennnvnsnsnnnnnensennnnnnennnnnnnnnenndennennnennnr 53 5 16 DiSEqC Command Generator ececcecseceeceeseeeeeeeeeeeeeeeaeeeeeeeesaesaeeneeeaeeneteateaee 54 6 DESCRIPTION OF THE INPUTS AND OUTPUTS csecsen 55 61 RUN DU i iscccsscccsccccccccstsccscassessaservscacseseasenviensanness 6 2 RS 232C serial port 6 3 Scart DIN EN 50049 cccscsscsscssssscssssessesseessssseeseeseesssusseeseessaussseseeseeseaseseesees 56 7 MAINTENANCE uuu ce cccecccsccesccesseesseccseeeseeceseccseeeseecsaeceseecsaecessecsaeesseseseeccasesseeeseeeees 7 1 Considerations about the Screen 7 2 Cleaning Recommendations mseaververvnrvanrnvenvenvrrenvenververvanensen
28. ion and pressing the rotary selector 1 a multiple choice menu will appear on the screen this menu permits to choose one of the following modulations 16 32 64 128 and 256 2 Symbol Rate When selecting this function and pressing the rotary selector 1 a multiple choice menu will appear on the screen this menu permits to choose the symbol rate 3 Spectral inversion If necessary activate the Spectral inversion On If the spectral inversion is not correctly selected reception will not be correct ad nup CAAM Pi E SIGNAL 0 FRE CH Figure 11 Screen of mesurement configuration QAM signals 09 2005 Page 33 5 11 2 DVB T COFDM Digital Channel Configuration D Press the Measurements Configuration 17 key to access to the CONFIGURATION menu and turn the rotary selector 1 to access the COFDM signals parameters which can be defined by user and described below 1 Carriers Number of carriers It defines the number of modulation carriers between 2k and 8k To modify its value place the marker over the Carriers field by turning the rotary selector and then press it a menu will appear on the screen Turning the rotary selector 1 select the desired value for the Carriers parameter and finally press it again to validate 2 Guard Interval The Guard Interval parameter corresponds to the dead time between symbols its purpose is to permit a correct detection in multi path situations This parameter
29. l 66 2 dBuV in previous figure this also shows the tuning frequency or channel depending on the tuning mode selected and the offset frequency to calculate the digital channel power For the power measurement of a digital channel to be correct it is essential to have previously defined the channel bandwidth using the Channel BW option in the D A Measurements Configuration menu that appears when pressing lt 17 key 5 12 5 Digital TV Measuring BER The PRODIG 5 EXPLORER offers three ways to measure the error rate BER of digital signals depending on the type of used modulation To select the BER measurement mode 173 A 1 Select digital signals Measurements Configuration pressing e 17 key Page 42 09 2005 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 2 Select by means of Signal option from CONFIGURATION menu DVB C for the measurement of QAM modulated signals DVB T for the measurement of COFDM modulated signals or DVB S for the measurement of QPSK modulated signals Available frequency ranges are DVB C QAM signals 45 MHz to 865 MHz DVB T COFDM signals 45 MHz to 865 MHz DVB S QPSK signals 950 MHz to 2150 MHz 3 Enter the parameters relative to the digital signal which appear in the measurement CONFIGURATION menu as described previously see section 5 11 Measurements Configuration 4 Select the option to exit from
30. l unit If any kind of problem occurs e g a short circuit an error message appears on the monitor SUPPLY SHORT the acoustic indicator will be heard and the instrument will cease to supply power The PRODIG 5 EXPLORER does not return to its normal operating state until the problem has been solved during this time it verifies every three seconds the persistence of the problem warning with an acoustic signal 5 8 Automatic signal identification function AUTO ID The PRODIG 5 EXPLORER allows automatically identifying TV signals according to the established configuration which are presents in the channel or tuned frequency In order to activate this function must once press lt 25 key Specially 4 i useful is to combine this process with the spectrum monitoring GHI 13 so that after locating the marker on the levels susceptible to contain a transmission and activating later the process of automatic identification in order to identify the present signal 09 2005 Page 29 USER S MANUAL PRODIG 5 FREQ 794 00 MHz CHANNEL 61 STARTING TESTING FOR ANALOG TESTING DVB T POWER OK TRYING CURRENT DVB T CONFIG Figure 8 Signal automatic identification screen AUTO ID First it recognises whether the signal is an analogue channel or a digital one If the channel is analogue it determines the television standard of the signal When the signal is digital DVB it analyses for each modulation type QAM
31. measurements CONFIGURATION menu 5 12 5 1 DVB C signals Once determined the parameters of QAM signal it will be possible to measure BER press the per 12 key until the BER measurement display appears In the BER measurement mode the monitor will show a display like the following one FREQ 650 00 MHz 3 kHz E Figure 18 Screen of BER measurement of QAM signals The BER measurement before error correction is shown BER before FEC Forward Error Correction 09 2005 Page 43 In a digital reception system for cable signals after the QAM demodulator an error correction method called Reed Solomon is applied see following Figure Obviously the error rate after the corrector is lower to the error rate at the QAM decoder output This is the reason because this screen provides the BER measurement before FEC Forward Error Correction BER before FEC TUNER REED SOLOMON Figure 19 Digital reception system via cable The BER measurement is provided in scientific notation i e 1 0 E 5 means 1 0x10 that is to say one wrong bit of every 100 000 and through an analogue bar as its length is smaller the signal quality will be better The analogue representation is done on a logarithmic scale not linear With the aim to have a reference about the signal quality it is considered that a system has a good quality when it decodes less than one non correctable error for every transmission hour This border is known
32. n _Ox See the following Figure jf CCIR 02 03 04 S01 S02 sf 68 69 STD CHANNEL PLAN D CCIR 01 02 04 803 sof 68 PARAMS NEW CHANNEL PLAN CCIR 02 03 04 S01 S02 so for 68 69 STD CHANNEL PLAN AUTO ID CCIR_01 02 03 04 su fs 69 PARAMS CH04 Figure 9 New channel plan generation process The user can edit the channel plan name and select te Cannel plans to delete by means of MODIFY CHANNEL PLAN option from UTILITIES tuv 22 menu The EXPLORER allows directly changing the tuned channel pertaining to the active channel plan by means of the horizontal I GUISE 6 From this way once selected 0 the channel tuning field 24 and in the TV _ e 10 and MEASUREMENTS 3 ner 12 operation modes is possible to check cyclically the entire active channel list 09 2005 Page 31 ALPROMAX USER S MANUAL PRODIG 5 5 10 Spectrum exploration function EXPLORER The Exploration function allows exploring the full frequency band in order to identify the analogue channels and digital presents in agreement with the configuration set in the tuning band In order to activate the function hold pressed the 25 key until the EXPLORER screen appears EXPLORER TESTING CHANNEL SET PROMAX 0 25 50 75 100 DVB T OK UNI DENTI FI ED
33. ns described in the Maintenance paragraph 09 2005 Page 9 x Symbols related with safety DIRECT CURRENT N ALTERNATING CURRENT DIRECT AND ALTERNATING GROUND TERMINAL PROTECTIVE CONDUCTOR I EE ms FRAME TERMINAL EQUIPOTENTIALITY ON Supply OFF Supply DOUBLE INSULATION Class II Protection CAUTION Risk of electric shock CAUTION REFER TO MANUAL gt gt OO FUSE Page 10 09 2005 2 2 Descriptive Examples of Over Voltage Categories Cat Low voltage installations isolated from the mains Cat Il Portable domestic installations Cat Ill Fixed domestic installations Cat IV Industrial installations 09 2005 Page 11 Page 12 09 2005 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 3 INSTALLATION 3 1 Power Supply The PRODIG 5 EXPLORER is a portable instrument powered by one 7 2 V 11 Ah Li lon battery There is also an external DC charger provided for mains connection and battery charging 3 1 1 Operation using the External DC Charger Connect the external DC charger to EXT SUPPLY 32 on the PRODIG 5 EXPLORER side panel Connect the DC charger to the mains Then press the rotary selector 1 for more than two seconds The level meter is now in operation and the battery is slowly charged When the instrument is connected to the mains the CHARGER indicator 4 remains lit This indicator changes of colour acc
34. o V A In the Audio Video measurement mode on the screen appears the following information 16 2 dB 20 30 40 MHz LEVEL I C N dB WA dB Figure 15 Measurement of the video audio rate In addition to the video carrier audio carrier level ratio 16 2 dB in previous figure it also shows the frequency or channel depending on the tuning mode selected and the Carrier Noise ratio 5 12 3 Analogue Digital TV Measuring the Carrier Noise ratio C N The PRODIG 5 EXPLORER carries out C N ratio measurement in four different ways according to the carrier type and the used band A Terrestrial band analogue carrier Carrier level is measured using a quasi peak detector 230 kHz BW Noise level is measured with an average detector and corrected to refer it to channel equivalent noise bandwidth according to the definition of the selected standard B Terrestrial band digital carrier Both measurements are done with an average detector 230 kHz and the same corrections are introduced on them bandwidth corrections C Satellite band analogue carrier Carrier level is measured using a quasi peak detector 4 MHz BW Noise level is measured with an average detector 230 kHz and corrected to refer it to channel bandwidth Page 40 09 2005 D Satellite band digital carrier Equivalent to case B but now using the 4 MHz BW filter On selecting the Carrier Noise measurement mode the screen displays the f
35. ollowing information TERRESTRIAL 40 1 dB 30 Figure 16 Carrier to noise ratio measurement C N As well as the video carrier noise level ratio 40 1 dB in previous figure the frequency or channel depending on the tuning mode selected and the level of the video carrier and video audio ratio are also shown When measuring channels in the satellite band or digital channels to measure the C N ratio correctly the bandwidth of the channel must be defined previously using the Channel BW option on the Measurements Configuration menu that appears vi when pressing lt 17 key IMPORTANT REMARK To measure digital channels C N ratio it is indispensable to tune channel at its central frequency In the case of the presence of adjacent digital channels these could mask the noise level measurement 09 2005 Page 41 5 12 4 Digital TV Measuring the Power of Digital Channels The PRODIG 5 EXPLORER measures digital channel power in the measurement filter bandwidth and estimates total channel power assuming that spectral density is uniform throughout channel bandwidth On selecting the CHANNEL POWER measurement mode the screen displays the following information fl DVB T COFDM POWER 66 2 dBuV E 0 20 40 60 e10 100 120 FREQ 650 00 MHz C N 3 kHz POWER 43 Ss CBER VBER Figure 17 Digital channel power measurement In addition to the power of the digital channe
36. on standard of the signal detected When the signal is digital it analyses the modulation type QAM QPSK COFDM and all the associated parameters such as the carriers 2k 8k the symbol rate the code rate etc and it tries to lock to the signal Activates the band exploration function long pulsation The meter explores the entire frequency band to identify the analogue and digital channels present Page 24 09 2005 Figure 5 Top panel view 30 RF 6 RF signal input Maximum level 130 dBuV Universal connector for F F or F BNC adapter with input impedance of 75 Q ATTENTION A Note the importance to protect the RF 6 30 input signal with an accessory to block the AC voltages used in CATV cables needed to feed the amplifiers and remote mode BI 00010000 e000000000 ec0000000 62 8 Figure 6 Lateral panel connectors 09 2005 Page 25 31 RESET button Enables the user to restart the instrument if there is any irregularity when operating 32 External 12 V power supply input 33 Loudspeaker 34 Fan 35 SCART connector SCART Figure 7 Rear panel view 36 RS 232C Connector For maintenance and calibration processes 5 2 Adjustment of Volume and Monitor Parameters 6 Repeatedly pressing the mno 3 key sequentially activates the VOLUME CONTRAST BRIGHTNESS SATURATION and HUE control menus this last only for NTSC colour s
37. ording to the battery charge status BATTERY CHARGE STATUS RED YELLOW GREEN Table 1 Indication of the battery charge status CHARGER 3 1 2 Operation using the Battery For the device to operate on the battery disconnect the power cable and press the rotary selector 1 for more than two seconds The fully charged battery can power the equipment for more than 3 5 hours non stop If battery is very weak the battery cut off circuit will prevent the device from functioning In such a situation battery must be recharged immediately Before taking any measurements you have to check the charge status of the battery by checking the battery charge level indicator that appears when activating the measurement mode pressing key per 12 These are the indicators on screen 09 2005 Page 13 BATTERY CHARGE LEVEL INDICATORS COLOUR SYMBOL CHARGE LEVEL GREEN 75 100 YELLOW 30 75 RED 10 30 lt 10 Charge in progress Table 2 Indication of the battery charge level on screen 3 1 2 1 Battery Charging To fully charge the battery connect the instrument to the external DC charger without activating the power on process The length of time it takes to recharge it depends on the condition of the battery If they are very low the recharging period is about 5 hours The CHARGER 4 indicator should remain lit When the battery charging process is completed with the instr
38. pixels that are permanently lit This should not be regarded as a defect in the TFT In accordance with the manufacturer quality standard 9 pixels with these characteristics are considered admissible Pixels which are not detected when the distance from the surface of the TFT screen to the human eye is greater than 35 cm with a viewing angle of 90 between the eye and the screen should not be considered manufacturing defects either It is advisable a viewing angle of 15 in the 6 00 o clock direction in orden to obtain the optimum visualization of the screen 7 2 Cleaning Recommendations CAUTION To clean the cover take care the instrument is disconnected CAUTION Do not use scented hydrocarbons or chlorized solvents Such products may attack the plastics used in the construction of the cover The cover should be cleaned by means of a light solution of detergent and water applied with a soft cloth Dry thoroughly before using the system again CAUTION Do not use for the cleaning of the front panel and particularly the viewfinders alcohol or its derivatives these products can attack the mechanical properties of the materials and diminish their useful time of life 09 2005 Page 57 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com
39. r 30 RF SOURCE L RF IN Figure 2 Power on and signal connection 09 2005 Page 15 STEP 3 To carry out a complete channel band exploration 5 Ss T 1 Select the frequency band to explore sxc 14 terrestrial or satellite 2 Activate the exploration process by holding lt 25 key pressed 1 3 Press _ e 10 key to visualise the channels detected and 6 to change between channels from detected channels list STEP 4 To carry out the tuned channel identification 5 Ss kot 1 Select the frequency band to explore sxc 14 terrestrial or satellite 2 Activate the identification process pressing once on lt 25 key 1 3 Press _ e 10 key to visualise the signal detected from channel or frequency 4 Pi identified or cui 13 to monitor the corresponding spectrum NOTE _ In the case that is desired to explore or identify DVB C signals it is necessary to select previously DVB C standard as digital signal identifier through ru 22 PREFERENCES menu STEP 5 Taking measurements mm 1 Select the channel or frequency 24 to measure by means of the rotary selector 1 Page 16 09 2005 2 Press per 12 key to select the type of measurement until on screen appears the corresponding measurement STEP 6 Frequency spectrum monitoring 5 Ss Kot 1 Select the frequency band sx to graph 14 terrestrial or satellite 4 2 Press
40. rror rate changes therefore if we measure in a digital satellite television system for example the error rate at the output of the QPSK demodulator at the output of the Viterbi decoder and at the output of the Reed Solomon decoder we obtain nothing more than different error rates This is the reason because the BER measurement is provided before FEC after Viterbi VBER BER before FEC BER after Viterbi TUNER ESK VITERBI REED SOLOMON gt Figure 24 Digital reception system via satellite amp DVB S QPSK VBER lt 3 9E 3 FREQ 1479 0 MHz kHz DL CH Figure 25 Screen of VBER measurement QPSK signals 09 2005 Page 47 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com The BER measurement is provided in scientific notation i e 2 0 E 3 means 3 2 0x10 that is to say two incorrect bits of every 1 000 and through an analogue bar as its length is smaller the signal quality will be better The analogue representation is done on a logarithmic scale not linear With the aim to have a reference about the signal quality it is considered that a system has a good quality when it decodes less than one non correctable error for every transmission hour This border is known as QEF Quasi Error Free and it corresponds approximately to a BER after Viterbi of 2 0E 4 BER 2 0x10 This value is marked on the measurement bar of the BER aft
41. s It is recommended to follow next procedure 4 From the spectrum analyser mode aar 13 tune the channel at its central frequency 3 EA Switch to Measurements mode per 12 measurement selection If in the lower line of the screen does not appear MPEG 2 message and consequently BER is unacceptable by turning the rotary selector deviate the tuning frequency until MPEG 2 message appears Finally tune channel again to minimize the frequency deviation which optimizes the BER and therefore minimize the BER If it is not possible to detect any MPEG 2 channel make sure that digital signal parameters are correctly defined Page 36 09 2005 5 12 Selecting the Measurements The types of measurements available depend on the operating band terrestrial or satellite and the type of signals analogue or digital Terrestrial band Analogue channels Level Level measurement of the currently tuned carrier Video Audio Video carrier to audio carrier ratio C N Ratio between the modulated signal power and the equivalent noise power for a same bandwidth Terrestrial band Digital channels DVB C and DVB T Channel power Channel power is measured assuming that power spectral density is uniform throughout channel bandwidth To measure it correctly it is indispensable to define the Channel BW C N Out channel measurement Noise level is measured at fnojge fruning Channel BW To measure it correctly digital
42. s using only the pretuned channels can be repeated In this way it is possible to optimise the measurement process On the frontal panel appears showed the type of measurement that is being carried Terrestrial Satellite Analogue Digital and the data are visualised by means of a hi res 5 graphic TFT display The equipment incorporates a light sensor that activates the contrast and luminosity of the display according to the environmental conditions The EXPLORER has an ideal size to hold with a hand The instrument can be held to the body with the carrying bag which at the same time protects it from the rain Especially considering its outdoor use includes an anti shock protector that completely covers the instrument and optionally can be supplied with a strong transport case Besides the front panel does not have any keys nor gaps to avoid accidental water ingress The PRODIG 5 is designed to integrate measurements that require different operating configurations In this way it incorporates a specific function to facilitate the alignement of antennas When activating it the instrument is set automatically to offer a fast spectrum sweep and a high sensitivity graphical bar allows the fine adjust of the maximums of signal In addition it includes a module for the feeding of LNBs and DVB T antennas to 5V As well as the commands for the programming of DiSEqC 1 2 devices The EXPLORER allows to be updated to new software versions that extend the
43. signal contents and power distribution over the channel They therefore need to be measured differently The modulation error ratio MER used in digital systems is similar to the Signal Noise S N ratio in analogue systems MER represents the relation between the average power of DVB signal and the average power of noise present in the constellation of the signals By example QAM 64 demodulators require a MER greater than 23 dB to work Though it is preferable to have at least a 3 or 4 dB margin to compensate for any possible degradation of the system While QAM 256 demodulators require an MER greater than 28 dB with margins of al least 3 dB Normally the maximum MER value seen in portable analysers is of approximately 34 dB Finally it is shown a status line which displays information about the detected signal The possible messages that can appear and its meaning are shown in the following list The messages are exposed from less to more fulfilment of the MPEG 2 standard No signal received Any signal has been detected Signal received A signal is detected but it can not be decoded Carrier recovered A digital carrier has been detected but it can not be decoded MPEG 2 Correct detection of a MPEG 2 signal 09 2005 Page 49 LPROMAX USER S MANUAL PRODIG 5 5 13 Spectrum Analyser The Spectrum Analyser mode allows the user to discover the signals present in the frequency band in quickly and easily and to make measuremen
44. sories of the installation switches LNBs etc proposed by Eutelsat with the aim to standardize the diversity of switching protocols 13 18 V 22 kHz and to satisfy the demands of the digital TV installations In order to define and or to send a sequence of DiSEqC commands press the DiSEqC key 21 on frontal panel It allows to define the satellite band configuration parameters and select through SEND function one of the eight predefined programs which execute basic functions to control an universal switch with two or four inputs by means of the rotary selector 1 r CATELITTE LE HIGH mn SEND POSITION A B A 0 20 FREQ 1479 0 MHz LEVEL 30 0 dBuV DL 1 9 0 MHz C N 76 dB CH Figure 31 DiSEqC command screen 4 piseqc is a trademark of EUTELSAT Page 54 09 2005 6 DESCRIPTION OF THE INPUTS AND OUTPUTS 6 1 RF input The RF input is through the RF 37 connector on the side panel The peak signal level should never exceed 130 dBuV 6 2 RS 232C serial port The PRODIG 5 EXPLORER incorporates an RS 232C serial port for diagnosis setup and calibration processes The signals in this connector are described in Table 4 N A Figure 32 RS 232C connector External view PIN No SIGNAL CHARACTERISTICS 1 Carrier detect not connected 2 Data Receive RxD 3 Data Transmit TxD 4 Data Terminal Ready DTR not connected 5 Ground GND 6 Data Set Ready DSR not conne
45. t allows the commutation between the measurement mode for Digital TV or Analogue TV 18 D This led remains lighted when the equipment works with digital signals 19 A This led remains lighted when the equipment works with analogue signals 6 _ 1 20 mno IMAGE ADJUST Activation of VOLUME CONTRAST BRIGHT SATURATION and HUE only for NTSC colour system control menus Key number 6 to enter numeric data Page 22 09 2005 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 21 22 7 _ DiSEqC Pars DISEQC Only in satellite band It allows adjusting configuration parameters in satellite band Key number 7 to enter numeric data 8 Tuv UTILITIES PREFERENCES It activates the Utilities menu short pulsation Equipment Info Displays information on the instrument serial number version of control software included set up etc Modify Channel Plan Deletes Channel Plan selected Exit Exit from Utilities It activates the Preferences menu long pulsation Language Selects the language between DEUTSCH ENGLISH ESPANOL FRANCAIS and ITALIANO Beep Activates ON deactivates OFF the beeper Skin Sets the screen background colour Light Sensor Activates the environmental luminosity sensor 5 to automatically adjust the resistance and brightness of the display Ter Identify Selects the type of terrestrial digital signal DV
46. tal channels SPECTRUM ANALYSER MODE Satellite band Terrestrial bands Measurement bandwidth Terrestrial Satellite Span Terrestrial Satellite Markers Measurements Terrestrial bands Analogue channels Digital channels Satellite band Analogue channels Digital channels Page 6 USER S MANUAL PRODIG 5 1 5 dB 30 120 dBuV 45 865 MHz 22 C 5 C 2 5 dB 40 100 dBuV 950 2050 MHz 22 C 5 C tv Level Video Audio ratio and Carrier Noise ratio Channel power Carrier Noise ratio and Channel identification Level and Carrier Noise ratio Channel power and Carrier Noise ratio 30 dBuV to 120 dBuV 31 6 uV to 1 V 10 dBpV to 120 dByV 3 16 pV to 1 V 230 kHz 4 MHz Full span full band 500 200 100 50 32 16 8 MHz selectable Full span full band 500 200 100 50 32 16 MHz selectable 1 with Frequency and level indications Level Channel power Level Channel power 09 2005 USER S MANUAL PRODIG 5 MONITOR DISPLAY Monitor Colour system TV standard Spectrum mode Sensibility BASE BAND SIGNAL VIDEO External video input Sensibility Video output SOUND Input Outputs Demodulation De emphasis Subcarrier RS 232C INTERFACE EXTERNAL UNITS POWER SUPPLY Terrestrial and Satellite 22 kHz signal Voltage Frequency Maximum power DiSEqC GENERATOR POWER SUPPLY Internal Batteries Autonomy Recharging time External Voltage Consumption AX P
47. tion levels in order the receiver can exchange to a signal of smaller quality when the reception conditions are not optimal Page 34 09 2005 r nup T AAENM PI SIGNAL a 0 Figure 12 Screen of mesurement configuration COFDM signals 5 11 3 DVB S QPSK Digital Channel Configuration D Press the Measurements Configuration 17 key to access to the CONFIGURATION menu and turn the rotary selector 1 to access the QPSK signals parameters which can be defined by user and described below 1 2 3 Symbol Rate It is possible to choose between the following values from 2000 to 45000 kbauds When selecting the option appears the current value in order to modify it enter a new value through keyboard when appears the data enter symbol appears on the upper left corner screen Code Rate Also known as Viterbi ratio It defines the ratio between the number of data bits and actual transmission bits the difference corresponds to the control bits for error detection and correction It permits to choose between 1 2 2 3 3 4 5 6 and 7 8 Spectral Inv If necessary activate the Spectral inversion On Reception will be bad if spectral inversion has been incorrectly selected 09 2005 Page 35 ARPROMAX USER S MANUAL PRODIG 5 in Vi gt E a ralel 4 SIGNAL Figure 13 Screen of mesurement configuration QPSK signals IMPORTANT REMARK DVB channels tuning may require an adjusting proces
48. ts at the same time To select it press GHI 13 key The monitor will show a picture like the one described in the next figure oHa 650 0014 r WER 65 6 dBuV Figure 27 Spectrum analyser mode The horizontal lines define the signal level the broken lines being separated a distance equals to 10 dB The level of the top line 70 dBuV in previous figure named Reference Level can be altered using the vertical cursors 6 keys between a range of 60 dBuV to 130 dBuV by steps of 10 dB from 70 dBuV to 130 dBuV in satellite band The signal level for each frequency is displayed vertically the lower frequencies appear at the left of the screen and the higher ones at the right The amplitude of the lobes is calibrated In the example in previous figure the noise level is at around 25 dBuV and the lobe with the highest signal level third from the right is at 70 dBpV The frequency range displayed called span from hereon can also be altered using the horizontal cursors 6 keys Therefore enables selecting the displayed screen frequency range in Spectrum Analyser mode between Full the entire band 500 MHz 200 MHz 100 MHz 50 MHz 32 MHz 16 MH and 8 MHz the latter one only in terrestrial bands A vertical broken line called marker appears on the spectrum display to identify the tuned frequency Page 50 09 2005 One of the applications of the PRODIG 5 operating as Spectrum Analyser is in the search for the best ori
49. ument off the fan stops IMPORTANT The instrument battery needs to be kept charged between 30 and 50 of its capacity when not in use The battery needs to be fully charged for best results A fully charged battery suffers temperature related discharge For example at a room temperature of 20 C it can lose up to 10 of its charge over 12 months 3 2 Installation and Start up The PRODIG 5 EXPLORER level meter is designed for use as a portable device Therefore does not require installation When the rotary selector 1 is pressed for more than two seconds the instrument is started up in the automatic power off mode that is the device is automatically disconnected after the selected minutes if no key has been pressed When the device is operating it is also possible to select the auto power off mode by means of the Preferences menu 22 and to select the time out until the automatic power off Page 14 09 2005 4 QUICK USER GUIDE STEP 1 Battery charging 1 Connect the DC external charger to the equipment through connector 32 located on the lateral panel Connect the DC charger to the mains 3 When the equipment is connected to the mains the CHARGER led 4 remains lighted CHARGER KG Figure 1 Battery charging STEP 2 Power on and signal connection 1 Hold the rotary selector 1 pressed until the equipment is powered on 2 Connect the RF signal source in the input connecto
50. ure and later press the rotary selector 1 The DVB SERVICES menu will appear then with the services available in the digital Multiplex Move the vertical cursors 6 or turn the rotary selector 1 and press it to select the service to visualise on screen Page 52 09 2005 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com _ 024x768 CHANNEL CCIR 3 50 Hz pmponent E SID NID 12547 33 Figure 29 Digital channel monitoring Also is possible to change the active service directly acting through the horizontal cursors 6 once has selected the field of the service from information window of the currently tuned channel 5 15 Antenna Alignment Function It allows executing the function Antenna Alignment to align antennas using a faster sweep without display of numerical measures The display appears divided in two parts the left one shows the spectrum of the signals detected in the band and on the right an analogue bar represents the level of signal corresponding to the tuned frequency or channel Figure 30 Utility for antenna alignment 09 2005 Page 53 Simultaneously the instrument emits by means of the loudspeaker an acoustic tone which varies according to the level of received signal 5 16 DiSEqC Command Generator DiSEqC Digital Satellite Equipment Controf is a communication protocol between the satellite receiver and the acces
51. vervesenvenverversensenene UNIVERSAL TV EXPLORER PRODIG 5 LV3 Digital Video Broadcasting 1 1 GENERAL 1 1 Description The television explorer PRODIG 5 EXPLORER represents an evolution step with respect to the traditional field strength meters The continuous PROMAX innovation process in the sector of field strength meter yields an equipment that changes the form to take and to understand the television signals measurements This equipment incorporates important advances in the functional aspects as in the ergonomics to allow the installers to make their work with the maximum comfort and speed Simultaneously the instrument is reliable front any possible problem at he input signal at the distribution components or the receiver equipments The PRODIG 5 has been designed to satisfy all the necessities of measurement during the transition from the analogue transmissions to the digital in the terrestrial satellites and cable systems Allowing to take measurements of analogue signals as much digital ones When pressing the auto identification key it searches and identifies the signal under test First it recognises whether the signal is an analogue channel or a digital one If the channel is analogue it determines the television standard of the signal When the signal is digital DVB it analyses for each modulation type QAM QPSK COFDM all the associated parameters such as the modulation system carriers 2k 8k symbol rate co
52. ystem On activation of a menu for a specific parameter the screen displays a horizontal bar whose length is proportional to the parameter level to modify this value simply turn the rotary selector 1 To exit the menu and validate the new value press the rotary selector 1 Page 26 09 2005 5 3 Selecting the Operation Mode TV Spectrum Analyser Measurements The PRODIG 5 EXPLORER has three basic operation modes TV Spectrum Analyser and Measurements To switch from TV operation mode to the Spectrum 4 3 f Analyser press er 13 key To switch to the Measurements mode press ber 12 key In the TV operation mode the demodulated television signal is shown on screen this is the default operation mode various functions can be selected as shown in the following paragraphs In the Spectrum Analyser operation mode the screen displays the spectrum of the active band terrestrial or satellite The span and the reference level In the Measurement mode the screen shows the available measurements according to the type of signal selected 5 4 Channel Tuning Frequency Tuning 0 Pressing 24 key the EXPLORER switches from frequency tuning to channel tuning and back again In channel tuning mode turning the rotary selector 1 sequentially tunes the channels defined in the active channels table When turning it clockwise frequency increases while turning it anticlockwise frequency decreases In frequency tuning mo
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