PERSEUS RECEIVER USER MANUAL
Contents
1. There are various functions related to the main window other than direct tuning see above m hy foi 1 1 F psi i L o L lalla siae dia n da eo ed eer Ps P i L i 1 F doti l ou E DA r Main Spect WFall window in Waterfall mode 6 2 6 SPAN This is the bandwidth displayed within the main waterfall spectral pane The selections available are 800kHz 400kHz 200kHz 100kHz 50kHz 25kHz 12 5kHz amp 6 3kHz 3 1kHz A 1 6kHz span is available only when the receiver sampling rate is set to 500kHz or less A 0 8kHz span is available only when the receiver sampling rate is set to 250kHz or less A 0 4kHz span is available only when the receiver sampling rate is set to 125kHz Span box SPAN could also be described as increasing the magnification on the Spec Waterfall screen This function can be used on playback as well as live listening SPAN is directly related to the sampling rate setting The waterfall can not show 400kHz if for example the receiver is only sampling 250kHz at the time Or is playing back a recording of 200kHz of spectrum 6 2 7 WATERFALL CONTROLS Speed Contrast Brightness The three scroll bar to the right of the waterfall pane slows speeds up the waterfall and allow changes waterfall brightness and contrast Colour palette The waterfall colour palette can be selected in the palette dialog which is activated pressing the Palette button in the main spectrum window control bar2. All the waterfall controls are disabled when in Spectrum mode Page 14 6 3 MARKERS A right mouse click feature is available within the spect waterfall pane Right click on up to four frequencies and a small arrow appears In waterfall mode the arrow is situated where the signal waveform would be on the spect view On the spect view the arrows are situated where the mouse was right clicked The screenshot below shows the numbered arrows relating to Mkr1 Mkr4 in small text on the top right The frequency and signal in dBm is also given Mkri 909 23 Mkr2 809 626 kHz as eee dBm 4 MkEr3 846 2 47 MEr4 di Il il ly I i 1 la i i th Wy I fo M al f il i i i y n ret Nt ye Wy MI VI if ri a ih ill W i ll wh Ul Il I i i I i l l i l 5 l i l i SED 1DDD 1020 1040 1060 1DED 1iDD 1120 1140 Screenshot of markers on the spect view Cir This button clears the Mkr arrows from the spect waterfall display Delta This button changes the values from the markers 2 3 and 4 to delta values Different to MRK 1 Peak This function is not enabled on the current software version 6 4 SPECTRUM AVERAGE AVG Main Stabilizes the spectrum waveform in the main spect waterfall display Will also stabilize the waterfall mode The main spectrum average function and its slider control are active only when the the enable button above the slider is enabled AVG Sec Stabilizes the sp
3. This wizard helps you install software for USE Device If your hardware came with an installation CD 22 or floppy disk insert it now What do you want the wizard to do c Pe from a list or specific location ed Click Next to continue 4 Back Cancel By default the above screen has the Install Software automatically box ticked Check the option Install from a list or specific location and then click Next Page 5 Installazione guidata nuovo hardware Selezionare le opzioni di ricerca e di installazione gS Ricerca il miglior driver disponibile in questi percorsi Utilizzare le caselle di controllo che seguono per limitare o espandere la ricerca predefinita che include percorsi locali e supporti imovibili I miglior driver disponibile verr installato TT Cercanei supporti rimovibili unit floppy CO ROM i Includi il seguente percorso nella ricerca D ADrivers Non effettuare la ricerca La scelta del driver da installare verr effettuata manualmente Scegliere questa opzione per selezionare da un elenco il driwer di periferica driwer contenuto nell elenco potrebbe non essere quello pi aggiornato per la periferica Indietro Avanti gt Annulla In the next dialog check the option Search a driver from these paths Include the following path in the current search and select the path D Drivers or substitute the letter D with the
4. a CF Stop Spect WFall 100 0kHz W A Wheel Step 100Hz Y wr AVG NB MKR Level dBm 96 6 i Main Sec Lev e 1202 Sio 7 80 60 40 TUNING Korver 123456 78 9 10 20 30 40 50 60 70 Leite SAMPLING RATE kS s MEM 6 kHz oe eS 125 250 500 1000 3 kHz agli Als 1 INPUT SELECT BkHe yy Teper ean Gener aed TAE ea PA pad ct 300 E 3 pe TFA Perseus Wav SkHz 0 1000 2000 PLAYBACK REC PET Notch gt Date ime File ddl dl 2 Perseus operating software default screenshot Page 8 6 1 TUNING THE RECEIVER Tuning is probably the most important function in any receiver There are many ways to tune the Perseus SDR 1 Frequency Pane mouse over 2 Frequency Pane direct entry 3 CF step 4 Frequency bar dragging or mouse over 5 Secondary BW window and the many adjustments within 6 Main Spect WFall screen mouse over and mouse click 6 1 1 MOUSE OVER FREQUENCY PANE Hovering the mouse over any of the digits except 10 MHz on the frequency pane and turning the mouse scroll wheel changes frequency This is perhaps the most convenient way of tuning the PERSEUS SDR quickly over a large area of the spectrum NB Frequency changes depend on which digit the user hovers over In the image below 1 in 1530 represents 1MHz Therefore hovering over 1 and turning the wheel changes frequency by 1MHz at a single wheel click Mouse over 5 changes frequency by 100kHz per click etc The
5. move 400kHz down the band to begin recording again quickly 6 1 4 FREQUENCY BAR DRAGGING OR MOUSE OVER Dragging Frequency can be tuned by dragging the frequency bar see above located below the main spec waterfall window Hold the left mouse button down and drag Mouse over If the mouse wheel is turned while the pointer is over the frequency bar the receiver will tune in wheel steps in the same fashion as mouse over the main spect waterfall window This step is set in the wheel step pane 6 1 5 FILTER BANDWIDTH PANE i 1 ry I i papali Mi etti di li i r Mel MILA PERA b The Filter bandwidth Pane close up Page 10 The function buttons within the BW pane are PBT NOTCH and BW buttons When the PBT Pass Band Tune mode is selected there are many functions within the Bandwidth pane a Double left click to centre the signal carrier b Left drag to fine tune the signal C Rotate the wheel to adjust the selectivity filter bandwidth d Drag the two filter edges independently e Tune via the wheel step arrows f Right drag to emulate passband tuning a DOUBLE LEFT CLICK Double click on the waveform in the BW pane to centre the carrier b LEFT MOUSE CLICK AND DRAG Left click hold and drag within this window to drag the frequency around in a fine tuning mode c BANDWIDTH The bandwidth is continually variable from 25kHz to virtually zero on the PERSEUS The butt
6. EMC standards ETSI EN 300 330 1 ETSI EN 300 489 1 ETSI EN 300 489 15 Compliance reports are available upon written request to Microtelecom s r l 10 INFORMATION TO THE USER FCC Part 15 815 21 and 815 105 Declaration of Conformity This equipment has been tested by a laboratory accredited by the FCC and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Caution Modifications to this device not expressly approved by Microtelecom s r l could void the user s au
7. Esperanza Temuco CHL 5 2100 2300 Radio Belarus BLA E 0000 2400 Radio Bandeirantes SP B F Memory window Database files are selectable As seen in the example above when a frequency listed in the database is tuned the entries are displayed in the MEM window Station names appear if the tuning frequency is within 500 Hz of the frequency listed in the database Stations scheduled at 1200UTC for example do not show in the MEM window at 2100UTC Time and day of the week of stations appearing in the window match time and date displayed by the PC clock day of the week is not checked in the EIBI database HFCC High Frequency Co Ordination Conference database Perseus software requires 3 files 1 hfcc txt 2 broadcas txt not a misprint this is the file name kept to 8 characters 3 site txt Page 21 The main HFCC database is available on the internet at the address http www hfcc org data index html The databases names have a prefix formed by a letter and two digits which code the seasons and the year of the edition validity The A letter marks Spring Summer editions the B letter marks Fall Winter editions I e the archive AO8ALLOO ZIP is the 2008 Spring Summer edition To update the HFCC database used by the Perseus software download the new archive unzip the archive in a separate folder rename the file XNNALLOO TXT X A or B NN Year to hfcc txt and copy the new hfcc txt broadcas txt and site t
8. MEM 6 7 Factory default settings HFSpan software utility Technical specifications European Community CE Conformity Information to the user FCC PART 15 Declaration of Conformity Disposal of your old appliance Directive 2002 96 EC WEEE OY OY OY OY OY OY OV OV OD 6 6 6 6 6 6 6 6 OUWUWOONNN UA AW Page 2 1 RECEIVER DESCRIPTION PERSEUS is a software defined VLF LF MF HF 10 kHz 30 MHz communication receiver based on an outstanding direct sampling digital architecture and with the capability of recording up to 1600 kHz of RF spectrum It features a 14 bit 80 MS s analogue to digital converter a high performance FPGA based digital down converter and a high speed 480 Mbit s USB2 0 PC interface The PERSEUS receiver analogue front end has been carefully designed for the most demanding users and includes a 0 30 dB attenuator in 10 dB steps a ten bands preselection filters bank and a high dynamic preamplifier with a top class input third order intercept point of more than 30 dBm The receiver is designed to operate on a PC under Microsoft Windows 2000 XP or Vista operating systems The antenna connection is a BNC female socket The power source is an universal 100 240 Vac 50 60 Hz wall socket adapter which provides the required 5Vdc 5 power supply to the receiver Audio source is via the PC soundcard on board audio Best results are heard by feeding the PC audio through a good amplifie
9. MODE bar Page 19 6 6 7 VOLUME AND MUTE AF Vol Volume control is on the bottom right of the software though many users prefer to use the volume on their external amplifiers The button above the Volume slider enables the audio output and mutes it when disabled 6 6 8 NOISE REDUCTION AF NR The NR control reduces background noise and is activated by the button above its slider control The NR slider controls the amount of noise reduction The noise reduction can be activated in all modes except with DRM and USER demodulators 6 6 9 NOISE BLANKER NB The NB control reduces impulsive noise and is activated by the button above its slider control The NB slider sets the threshold of the noise blanker Care should be exercised when strong signals are present in the band where the receiver is tuned A too low NB threshold NB slider at or near its maximum position may affect the quality of the tuned signal and introduce intermodulation distortions 6 6 10 SIGNAL STRENGTH METER The signal strength meter S meter is marked in both S points and dBm S9 73 dBm input The S meter response is very linear thorough all its scale and accurate to within less than 1 dB across the range LOCK indication When operating in Sync AM mode SAM a small LOCK display appears in the top right of the meter when the demodulator locks on to the AM carrier ADC CLIP indication A red ADC clip mark appears in the S meter when the input signal strengt
10. frequency will count upwards continuously or downwards for that matter If the mouse is hovered over 3 30kHz below and clicked upwards past 9 the next digit will clock up to 6 ie 600kHz The Frequency Pane 6 1 2 DIRECT ENTRY ON THE FREQUENCY PANE Double clicking on the frequency pane brings up a frequency input window allowing the user to manually enter a desired frequency This may be typed directly in to the space at the top or mouse clicked via the numbered buttons below The direct frequency entry box pops up just below the main frequency box Page 9 6 1 3 CF STEP White horizontal arrows either side of the Spect WFall select bar below the frequency bar tune the receiver up down by user selected step eg 500kHz or 1MHz at a time The frequency bar Below are white arrows either side for CF step CF Step choices are 1MHz 500 400 200 100 50 25 20 10 5 2 and 1kHz The buttons to set the CF step are two panes below the frequency See above images Span CF step and Wheel Step Different steps will be useful to different users One example could be that a MW dxer is recording a bandwidth of 400kHz just before the top of the hour to find station ids He or she may wish to move up or down the band by 400kHz to try and capture a completely different set of station ids Possibly at the end of the news at 5 minutes past the hour The dxer could stop the initial recording and in only one click
11. from UK Talk Sport If the emulated Pass Band Tuning is used the shaded filter area is right clicked held and dragged to the left away from the carrier of Talk Sport CBC is then heard free of interference I MIA i apt aA hy at N A I dI i A Ay Al a N i t Ni i Wyre p 1 im 7 a Ma ii y W h M y Fat af i LI l LI F Mm HHI i I The freq centred on 1070 left but using PBT the QRM vanishes right Page 11 6 1 6 NOTCH FILTER This function can notch out a selected carrier or area of spectrum close by the desired signal The above PBT example worked well with CBC 1070 and the Euros on 1070 An excellent example of the notch filter s use is as follows Again a MW example Until early 2008 many dxers noticed an unidentified carrier on around 1181kHz If a European Dxer wishes to listen to WHAM 1180 from Rochester NY the PBT as per the example above could be used to drag the filter hf to get rid of the Euros on 1179 But what of the unidentified carrier hf of the desired signal The notch filter can completely eliminate this unwanted menace Notch functions are activated selecting the Notch button in the Bandwidth pane or performing the following action holding the Ctrl key when in PBT mode ACTION EFFECT Double left mouse click Place notch at the selected frequency Drag with mouse left btn clicked Tune notch filter to desired frequency Mouse wheel Adjust notch filter width Right click Disable not
12. playback time Page 17 A PC clock sometimes becomes wildly out of time especially in the mid winter cold of a radio shack This also means that windows automated file date of creation will be wrong A replacement back up battery on the PC motherboard may be required if the clock goes off time frequently NB Playback is restricted to the PERSEUS hardware being connected and running on the PC The software will not activate if the PERSEUS is not connected to the PC 6 5 3 MOVING FORWARD AND BACK DURING PLAYBACK Since version 1 0 single left click anywhere on the progress bar to advance to a chosen point of the recording To loop the playback over a smaller selection simply left click and hold at the desired spot on the progress bar Drag the mouse pointer along to the right to create a new line which will be a much paler shade of yellow almost see through Let the mouse button go and playback immediately begins from the new desired spot This should be flawless and instant The player will repeat the new selected section only over and over until stopped This may be useful if the user wishes to repeat a possible station ID over and over again A left click on the line cancels the new selection and returns the playback to the beginning of the file NB The progress bar differs slightly in operation from common progress bars in WINAMP or WINDOWS MEDIA PLAYER for example Troubleshooting If the user fails to create a new line but
13. storage partition To activate the PERSEUS receiver run the receiver operating software perseus exe file Double click or right click open to run SHORTCUT To create a single click shortcut for the PC desktop right click Perseus exe and click on create shortcut Right click the shortcut and cut Then right click on the desktop and paste the shortcut This is only one way to create a shortcut The user may also use for example the quick launch toolbar Di Shortcut to Perseus exe The operating software is free standing and does not install any files to the hard drive once the drivers are installed User settings are stored in the windows registry Connect a suitable antenna and click on the new shortcut Audio heard from the PC speakers should now be from the PERSEUS SDR receiver NB If recording a wideband piece of spectrum remember that a tuned antenna will not work eg using an ATU or a MW loop which peaks on a single frequency Perseus ATT LE Off 10dB 20d8 30 FRONT END e Presel Preamp Dither AMPLITUDE Ref Lev dBm qw Scale dB div 10 FREQUENCY 14 150000 Span kHz RBW Hz AN Ing I E l i k iln fl lu IN IT WI i il l Wi li i Ke yer ly a WW iat i T Y j i fiw ai a th i Ny W i i My i Ny i NA i W j M i i i Il W i n i nj di Wo I e az ae dine pe A LRL RE s Ee x LOO 14110 14120 14130 14140 1a 14160 100 0 1221 Y a
14. wav 4 071229_747 wav 07122 071225_1050 wav 071225_1056 wav 71071229 _748 wav 07122 Save as type wav Files wavy Cancel File name and location window pops up on pressing RECORD Note While recording it is NOT possible to tune around beyond the frequency limits of the spectrum being recorded eg the user can not check a SW frequency while recording say 560 960kHz The same of course stands for playback It is not possible to tune beyond the recorded frequencies 6 5 2 PLAYBACK To play back a file which has been recorded at an earlier time click on the Wav button within the INPUT SELECT pane The PERSEUS stops receiving live signals and the Wav and File buttons are now activated Click File and browse on the PC to the location of the pre recorded file s Then simply press the PLAY button These buttons are similar to those found on most domestic DVD players and video recorders If the receiver has created numerous automatically named files PERSEUS will playback the whole series of files if required This playback should be continuous and flawless even during track file change The PERSEUS software will playback wav files which have been copied to a DVD equally as flawlessly The input select pane During playback the Perseus software will display date and time in the same format as during recording Therefore so long as the PC clock has been kept accurate during recording so too will the
15. 80117_2308 wav file is the example below The next file becomes 080117 _2309 wav The file size of an automatic 10m recording is around 1 757GB at 400kHz 878MB at 200kHz and 439MB at 100kHz of spectrum recorded Lo IT n n n H I ki I a vi A H T L Wi if 4 ii W I l a Mad r hat STOP PLAY and RECORD buttons and PROGRESS BAR at the bottom Page 16 6 5 1 RECORDING To record from the PERSEUS select the chosen frequency limits required in the main window by dragging the frequency bar Click on the record button which is third from the left at the bottom of the screen A new window pops up asking for a user defined file name and folder location to store the file see below As seen in the example above the file may be named to include the date and time for ease of finding The example above is called 080117_2308 meaning the file was recorded on January 17th 2008 at 2308UTC The Perseus software takes the file time from the computer clock so it is a must that the PC clock be kept accurate The software also displays how much free space is left on the hard drive In the case above 371 14 GBytes are free Saveas OOO 2jxl Save In perseus files da e E 071225 1045 way 071225 1051 way 071225 1057 way 071225_1046 wav 2 ovizz5_1o5z wav ovizz5_105e way o7122 o71z25_1047 way 2 oviz25_1053 wav oviz25_2257 way o7122 071225_1048 wav 2 o71225_1054 way 1071226 _057 wav 07122 1 071225_1049 wav 1 071225_1055
16. PERSEUS RECEIVER USER MANUAL microtelecom Document version EN14 2007 2009 Microtelecom s r l All rights reserved Microtelecom s r l S S n 352 Km 3 600 33050 Pavia di Udine Italy INDEX OUR WN m HOW ON Receiver description 1 1 Front Panel 1 2 Rear Panel USB Drivers Installation System Requirements Operating the receiver safely Latest software release Operating the Perseus software 6 1 Tuning the receiver 6 1 1 Mouse over frequency pane 2 Direct entry on the frequency pane 3 CF step 4 Frequency bar dragging or mouse over 5 Filter Bandwidth pane 6 Notch filter e 1 2 3 OY OY OY OY OD 6 2 Mai AIDA pectrum waterfall window Mouse over and wheel step Direct click Dial pointer 4 Tuning Center Button active 5 Tuning Center Button inactive 6 2 6 Span 6 2 7 Waterfall controls 6 3 Markers 6 4 Spectrum average 6 5 Recording Playback 6 5 1 Recording 6 5 2 Playback 6 5 3 Moving forward and back during playback 6 6 Other Controls 6 6 1 Attenuator ATT 6 6 2 Preselection filters Presel 6 6 3 ADC Preamplifier Preamp 6 4 ADC Dithering Dither 5 Amplitude Reference Level and Scale 6 Mode AM SAM CW RTTY LSB USB FM DRM USER 7 Volume and Mute AF Vol 8 Noise reduction AF NR 9 Noise blanker NB 1 1 l 1 l al 1 S 2 ye 2 2 2 O Signal strength meter 1 Automatic Gain Control AGC 12 Frequency calibration 6 6 13 Memory window
17. amic range It may be difficult to notice any real difference when broadcast listening signals are very strong and atmospheric noise is far beyond the receiver s own noise level 6 6 4 ADC DITHERING Dither This control enables the A D converter dither generator and the reduces the amplitude of its spurious signals Spurious responses are improved at the expense of the receiver sensitivity about 2 dB Users may have this function always on unless tuned for example to a very quiet 10m band ATT and FRONT END controls 6 6 5 AMPLITUDE Reference level and Scale Both ref level and scale alter the height and position of the spectrum waveform displayed when the Spectrum mode on the main panel is selected as well as the spectrum waveform in the secondary bandwidth window 6 6 6 MODE BAR The reception mode buttons AM SYNC AM CW RTTY USB LSB FM DRM USER are placed along the centre of the screen DRM demodulator The demodulation of DRM signals requires a Virtual Audio Cable VAC software interface and an external DRM decoder like i e the Dream software application USER demodulator When the user demodulator is selected the receiver VAC Virtual Audio Cable output is fed with zero IF IQ samples filtered with the selected bandwidth and normalized in amplitude with the selected AGC setting This mode is useful when a third party application wishes to process the zero IF data stream at the selected frequency The
18. ch filter 6 2 MAIN SPECTRUM WATERFALL WINDOW The main Waterfall Spect window allows operation of many functions associated with direct tuning 6 2 1 MOUSE OVER amp WHEEL STEP The centre of the SDR Receiver is the Spectrum Waterfall screen which ever mode the user chooses Hover the mouse over anywhere within the main Spect WFall window and turn the mouse wheel This will step the receiver up or down by the amount defined in the wheel step pane The options are 25 12 5 10 9 and 5kHz as well as 100hz and 1hz Common examples for dxers include 9kHz steps for dxing European MW stations or 10kHz for The Americas The 5kHz step is ideal for SW HF broadcast band dxing NB This is a very convenient method of zipping up and down the band for both MW dxers steps of 9 or 10kHz and SW dxers in 5kHz steps 6 2 2 DIRECT CLICK Double click directly onto a wave or waterfall line and the receiver will jump straight to the frequency selected to the nearest full 1kHz no decimal places 6 2 3 DIAL POINTER The receiver has a dial pointer which spans the main Spect Waterfall window vertically on the frequency to which the receiver is tuned The user can left click hold and drag the dial pointer to change frequency but only as long as the CENTER button in inactive This is another way to move up and down the frequency spectrum quickly Page 12 Dl 11 i i au d TETs kub A toa ite i i uu i i BAITA TA ed ot j ae Me a
19. d 2 MS s operations USB2 0 High Speed 480 Mbit s port 16 bit AC 97 compatible audio board 1024 x 768 minimum resolution video board and monitor 2 Button mouse with wheel 10GB or more internal hard disk Supported OS Windows 2000 SP4 Windows XP SP2 Windows Vista NB The above is a guide only The Perseus receiver may operate on PCs with a lower specification but performance can not be guaranteed Only 32 bit version OSs are officially Supported 4 OPERATING THE RECEIVER SAFELY WARNING Failure to observe the following instructions could seriously damage the receiver USE ONLY THE POWER SUPPLY PROVIDED WITH THE RECEIVER DO NOT CONNECT THE ANTENNA CONNECTOR OF THE RECEIVER TO THE ANTENNA CONNECTOR OF A TRANSCEIVER TRANSMITTER DO NOT CONNECT THE RECEIVER TO AN ANTENNA WHICH IS NEAR AN ANTENNA SYSTEM CONNECTED TO A HIGH POWER HF TRANSCEIVER TRANSMITTER I E A HIGH RF FIELD 5 LATEST SOFTWARE RELEASE The latest software release is available for download on the internet at the address http microtelecom it perseus software Release notes are provided at the same address or in the distributed software Page 7 6 OPERATING THE PERSEUS SOFTWARE Copy the folder with the latest release of the PERSEUS software from the installation CD or from the latest download see below to the PC hard drive Any user preferred location is fine e g simply onto the desktop or out of the way in for example My Documents or on a
20. ect waveform in the secondary bandwidth display pane The secondary spectrum average function and its slider control are active only when the the enable button above the slider is enabled AVG Main Sec lr il LA An url wh Il 1 Mali aain on I LI of E l l i I l a i I 8 ot 1000 w 30 PET Hotch AVG and MKR next to the BW pane Page 15 6 5 RECORDING PLAYBACK The biggest attraction to PERSEUS is the record feature Technology has advanced enough to enable the PERSEUS SDR to record a massive 800kHz of the RF spectrum and play back the file at a convenient time with all the desired features of the receiver still available to optimise reception eg bandwidth mode passband tuning etc This spectrum record function has particular interest to DXers whose main focus is MW or Tropical Bands though not of course exclusively Perseus can record a spectrum bandwidth of 800 400 200 or 100 kHz This is selected from the SAMPLING RATE buttons The SAMPLING RATE buttons actually select the sampling rate at the output of the receiver digital down converter accordingly to the following table Sampling Rate REC PLAY Bandwidth Ksample s 125 250 500 Sampling rate pane The PERSEUS will record up to a maximum of 10 minutes 5 minutes when the selected sampling rate is 1000 KS s before automatically creating a new wav file After 10m 5 m 1MS s a new file is created with the same name plus 1 0
21. eiver to a PC USB 2 0 port with the cable provided with the receiver Page 4 2 USB DRIVERS INSTALLATION To install the Perseus USB Drivers on your system 1 Insert the CD which came with the Perseus into the CD DVD ROM drive on the PC 2 Connect the Perseus receiver to the wall power adapter 3 Connect the USB cable to a spare USB2 0 socket of the PC and then to the Perseus receiver Please note that the Perseus receiver detects the connection to the PC and its power supply is internally disabled when the receiver is not connected to a PC or when the PC is powered off Windows XP detects the new hardware and begins the installation procedure NB These messages may differ slightly depending on which version of the Windows operating system is used Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for current and updated software by looking on your computer on the hardware installation CO or on the windows ae KER aite with your permission Can Windows connect to Windows Update to search for software Yes this time only O es now and every time connect a device No not this time Click Next to continue Cancel This screen may be seen depending on the version of Windows used The software asks to log on to the Windows update site Tick No not at this time and click next Found New Hardware Wizard Welcome to the Found New Hardware Wizard
22. h is higher than the receiver input clipping level When this happens the receiver A D converter operates in a non linear mode and may introduce high intermodulation distortions In this case it is necessary to switch on the attenuator until the ADC CLIP mark disappears The S meter can be operated in RMS mode input signal RMS power displayed or in Peak mode input signal peak power displayed clicking the RMS or Peak at the right of the S meter 6 6 11 AUTOMATIC GAIN CONTROL AGC The Automatic Gain Control keeps the audio output at a constant output level disregarding the input signal power Three time decay constants can be selected with the buttons Fast Med and Low in the AGC control bar The AGC can be excluded with the Off button In this case the audio output level is controlled by the Volume slider When the AGC is off large input signals can cause the saturation of the audio output Better DRM signals reception is achieved with the AGC in the slow position 6 6 12 FREQUENCY CALIBRATION To calibrate the frequency scale of the Perseus receiver the following procedure should be performed a Tune to a WWV signal at 10 MHz or 5 MHz b Select Center in the Tuning control window c Select the 0 8kHz filter in the BW window Page 20 d Double click the WWV carrier in the Secondary Spectrum Window to exactly center it at a 0 Hz offset before double clicking it will appear at some
23. l 1 U nd 7 i r pi h i 1 i sui Ha fi m o P Mn ry A r j F 4 ra dii I MJ fF n e h ei La ale The Fi 7 I Ae hi su A wy hd L Level dBm 855 9 Main Sec ee Oe SHE 80 si e A A f he ra N ua Tiar ar es E if n set I tata Hay I I Ay z Fast 1 n A yt N i hied n j lari ni PAT Motch JTT HFE EIBI Leer Dial pointer in spectrum mode in conjunction with the settings in BW pane The pointer is present on the Spectrum view and on mouse over the tuned frequency in the waterfall mode The pointer changes in conjunction with adjustments made in the BW pane and is physically as wide as the selected bandwidth as seen within the BW PANE 6 2 4 TUNING Center button active This button keeps the tuning dial pointer in the centre of the frequency scale If a waterfall line is double clicked when the Center button is active the frequency scale moves along and the whole waterfall will move along The user may lose track of which waterfall line is which till the screen catches up If the center function is activated the tuning pointer will not move from the centre of the screen TUNING Center Center button inactive Page 13 6 2 5 TUNING Center button inactive The user can click anywhere on the waterfall or spectral screen and the receiver jumps to the new frequency without moving the whole waveform waterfall The pointer will also move and can be dragged across the frequency spectrum
24. letter of the CD ROM drive unit where the Perseus distribution CD ROM is located Then click Next Hardware Installation A The software you are installing For this hardware Perseus HF Receiver Microtelecom s r l has not passed Windows Logo testing to verify its compatibility with Windows sP Tell me why this testing is important Continuing your installation of this software may impair or destabilize the correct operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the hardware vendor for software that has passed Windows Logo testing Continue Anyway Windows XP informs the user about the status of the Windows Logo testing of the USB drivers provided with the software Click Continue Anyway Found New Hardware Wizard Please wait while the wizard installs the software ES E Perseus HF Receiver Microtelecom s r l Cancel Allow the software driver installation to set up automatically Page 6 Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finished installing the software for 2 Perseus HF Receiver Microtelecom s r l Click Finish to close the wizard The USB drivers are now installed 3 SYSTEM REQUIREMENTS 2 GHz Pentium IV CPU with 512 MB RAM for 125 KS s 250 KS s and 500 KS s 2 5 GHz Dual Core CPU with 1 GB RAM for 1 MS s an
25. mpling Rate DDC Output Bandwidth Power Supply Requirements Cabinet Aluminium Enclosure Operating Temperature Range Frequency Accuracy Weight 10 kHz 30 MHz SSB CW AM S AM FMNB etc Software Defined 0 49 uV SSB S N N 10 dB Preamp ON Dither OFF Software Defined gt 100 dB Stop Band Attenuation 90 dB 31 dBm 102 dB 7 050 MHz 2 kHz Spacing 100 dB 14 150 MHz 2 KHz Spacing 124 dB CW Dither OFF 117 dB SSB Dither OFF 125 dBm 129 dBm Preamp ON Dither OFF 131 dBm Presel OFF Preamp ON Dither OFF 118 dBm 122 dBm Preamp ON Dither OFF 124 dBm Presel OFF Preamp ON Dither OFF 3 dBm Preamp OFF 6 dBm Preamp ON 0 10 20 30 dB LPF Filter 0 1 7 MHz BPF filters 1 7 30 MHz 0 1 7 1 7 2 1 2 1 3 0 3 0 4 2 4 2 6 0 6 0 8 4 8 4 12 0 12 17 17 24 24 32 OFF 0 40 MHz Wide Band Mode High speed 480 Mbit s USB2 0 port 125 Ks s 250 Ks s 500 Ks s 1 MS s 2 MS s 24 bit sample IQ 100 200 400 800 kHz gt 120 dB Alias Rejection 1600 kHz gt 110 dB Alias Rejection 5Vdc 5 700 mA 110 x 36 x 185 mm W xH x L 0 40 C 1 ppm after calibration 380 g All specification are measured at 14 15 MHz with Preselector ON Preamp OFF and Dither ON unless otherwise indicated CW bandwidth 500 Hz SSB bandwidth 2400 Hz Page 24 9 EUROPEAN COMMUNITY CE CONFORMITY Microtelecom s r l declares that the Perseus receiver complies with the European Community
26. offset from the center due to the finite precision of the Perseus reference oscillator e Click Cal on the Tuning control panel In the case the calibration has to be repeated click CalClr and repeat the above procedure With some experience you can calibrate the clock with a precision which is much higher than the clock stability itself The Cal button is active only when in Center tuning mode 6 6 13 Memory window MEM In the memory window the receiver software can display three lists of active broadcasting stations at the selected frequency The lists contents are based on the data contained in the HFCC in the EIBI and in an optional USER database The memory window shows only the broadcast stations which are active according to the records contained in these databases at the UTC time they are transmitting There are three function buttons associated with the memory window HFCC EIBI and USER The receiver software displays information from the HFCC and EIBI on line frequency databases The user can produce his own personal USER database The USER database file should be named userlist txt have the same format of the EIBI database and kept within the Peseus software folder I 80 60 E oes 7 A elk OAE TE E E ia LA IS RNE li P __z TTT Ca l its doro Li 8 9 10 20 30 40 50 60 70 Pi 0400 2305 Radio Nigeria Kaduna NIG HA 2100 0300 CNR 2 China Business A CHN IM q 0000 2400 Radio
27. only clicks to attempt to advance playback by a few minutes the software may seem to stick The player is probably only playing back a very small selected area over and over again and hence the impression of stuttering and jamming The light yellow line to the right just before the mouse button is let go Once released the deep yellow line jumps to the new place on the progress bar and immediately begins playback from the new point 6 6 OTHER CONTROLS A detailed description of the other controls on the software control panel beginning at the top left of the screen 6 6 1 Attenuator ATT Like on a conventional receiver the attenuator reduces signal input This may be useful if a user has problems with strong local signals appearing on frequencies other than their own eg from a local radio ham or local MW station 6 6 2 Preselection filters Presel This control inserts the receiver preselection filters It is very useful when very strong out of band interfering signals may saturate the A D converter Eg if the user is tuned to MW while a radio amateur very close by is active on 160 or 80metres and breaking through Switch in the Preselector in this instance to prevent or reduce overloading Page 18 6 6 3 ADC Preamplifier Preamp This control enables the preamplifier built in the A D converter When activated the ADC improves the receiver sensitivity by about 2 dB at the expense of a slightly inferior blocking dyn
28. ons may give the impression of fixed bandwidth with settings of 25 12 6 3 1 6 and 0 8kHz This is not so however Hover the mouse over the shaded area within the BW pane and turn the mouse wheel The selected area which is shaded will be seen to be continually variable If very narrow bandwidth is required choose a lower selection like 1 6 or 0 8 and it is possible to reduce the bandwidth to virtually zero Using a lower setting not only magnifies the screen but also switches in different filters d DRAG THE FILTER EDGES INDEPENDENTLY Left mouse click hold and drag to grab the edges of the shaded area independently of each other to manually increase or decrease the bandwidth A small arrow appears on the red line when this adjustment is being made This can be useful for example if there is an interfering signal on one of the sidebands only e TUNE VIA WHEEL STEP ARROWS The white arrows either side of the tune notch and PBT buttons act as a tuner up and down in the steps assigned by the wheel step function f PASSBAND TUNING PERSEUS has a right click function within the BW pane which moves the whole selected part of the window around Right click and hold the shaded area to drag left or right This is the SDR emulation of Passband Tuning as there is no real PBT in a zero IF single conversion receiver like Perseus In the example below PERSEUS is tuned to 1070kHz Canadian MW station CBC Moncton There is QRM from 1071kHz
29. r and speakers systems rather than the standard speakers bundled along with most PCs Warning Read carefully the paragraph Operating the receiver safely page 7 prior to use your receiver Failing to observe the indications herein listed could seriously damage the receiver and voids the warranty Page 3 1 1 FRONT PANEL On Receiver status The receiver detects the connection to the PC USB Host Controller When the PC is turned off or if the receiver is not connected to a USB port an internal circuit disables the receiver and put it in an OFF state Clip ADC Clip The ADC clip indicator signals that the input signal level is exceeding the capability of the receiver WB Wide Band Mode It indicates that the receiver is operating in wide band mode no RF preselection filter inserted in the signal path 10 10 dB RF attenuator status The indicator activates when the 10 dB attenuator is inserted 20 20 dB RF attenuator status The indicator activates when the 20 dB attenuator is inserted 1 2 REAR PANEL PERSEUS HF RECEIVER SN 00001 RF input BNC type 50 Ohm antenna input socket For best performance connect the receiver to a Suitable 50 Ohm external antenna system 5V 1A Regulated receiver power supply socket Use the receiver only with the wall adapter provided with the receiver Improper voltage power supplies may seriously damage the receiver USB 2 0 USB 2 0 Cable socket Connect the rec
30. thority to operate the equipment The Perseus receiver is made in Italy Page 25 11 DISPOSAL OF YOUR OLD APPLIANCE DIRECTIVE 2002 96 EC WEEE 1 When this crossed out bin symbol is attached to a product it means that the product is covered by the European Community directive 2002 96 EC 2 All electrical and electronic products should be disposed of separately from the municipal waste stream via designated collection facilities appointed by the government or by the local authorities 3 The correct disposal of your old appliance will help prevent potential negative consequences for the environment and the human health 4 For more detailed information about the disposal of your old appliance please consult your city office waste disposal service or the shop where you purchased the product 2007 2009 Microtelecom s r l All rights reserved Microtelecom s r l S S n 352 Km 3 600 33050 Pavia di Udine Italy Page 26
31. u and browse the registry tree for the key HKEY_CURRENT_USER Software Microtelecom s r l perseus 3 Delete the folder v1 0f to reset the software version v1 0f settings to its factory default or the appropriate version if newer If preferred the full microtelecom s r l can be deleted 4 Restart the Perseus software Page 22 7 HFSPAN UTILITY HFSpan is a stand alone spectrum analyser which is included along with the PERSEUS operating software HFSpan will display 10 20 or the maximum 40MHz spectrum The frequency bar can be dragged when the bandwidth is set at 10 and 20MHz To start HFSpan double click or right click and open HFSpan exe The PERSEUS operating software does not run in conjunction with the HFSpan software HFSpan 1 0 5 0 0 0 5 0 20 0 25 0 30 0 35 0 Attenuator Preselector Filter ADC Settings stop Bun Ode e f F High Gain 10 dB oF oy t Dith vi Frames 18 20dB o fi FET Frames s 63 8 C 30d8 Je dj OFF Wideband Window Blackman Avg Off Span 40 MHz MBytes s 1 0 HFSpan window Page 23 8 TECHNICAL SPECIFICATIONS Frequency Coverage Modes Sensitivity Selectivity Image Rejection Input IP3 Dynamic Range IMD3 CW Blocking Dynamic Range CW Blocking Dynamic Range SSB Minimum Detectable Signal CW Minimum Detectable Signal SSB Input Clipping Level Attenuators RF Preselection Filters Bank PC Interface DDC Output Sa
32. xt files in the Perseus software folder overwriting their older version The EIBI database file is available on the internet at the address http www eibi de vu To update the EIBI database used by the Perseus software download the frequency sorted version from the above address The EIBI file is named with the same convention used by the HFCC freq XNN txt where X A or B and NN Year The file should be renamed eibi txt and copied into the Perseus software folder Text files within the PERSEUS folder 1 hfcc txt 2 broadcas txt 3 site txt 4 eibi txt 5 userlist txt only if a user file is required NB Names of any updated text files should be changed and copied into the Perseus software folder where the operating software is stored Allow the old files to be overwritten If the file names are left as original the operating software will not recognise them If the user tries to rename the database file to eibi txt without knowing if his file extensions within Windows are hidden the real file name may end up as eibi txt txt and the file will not be recognized by the Perseus software 6 7 FACTORY DEFAULT SETTINGS The Perseus software stores all the user settings in the Windows registry To reset the Perseus software to its factory default you need to delete the key stored in the Windows registry by the Perseus software as follows 1 Close the Perseus software 2 Type regedit in the Windows Start Run men
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