Microtelecom_Perseus_user.pdf

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1、Page 1 PERSEUS RECEIVER USER MANUAL - 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 Page 2 INDEX 1. Receiver description 3 1.1 Front Panel 4 1.2 Rear Panel 4 2. USB Drivers Installation 5 3. System Requir

2、ements 7 4. Operating the receiver safely 7 5. Latest software release 7 6. Operating the Perseus software 8 6.1 Tuning the receiver 9 6.1.1 Mouse over frequency pane 9 6.1.2 Direct entry on the frequency pane 9 6.1.3 CF step 10 6.1.4 Frequency bar dragging or mouse over 10 6.1.5 Filter Bandwidth pa

3、ne 10 6.1.6 Notch filter 12 6.2 Main spectrum/waterfall window 12 6.2.1 Mouse over and wheel step 12 6.2.2 Direct click 12 6.2.3 Dial pointer 12 6.2.4 Tuning: Center Button active 13 6.2.5 Tuning: Center Button inactive 14 6.2.6 Span 14 6.2.7 Waterfall controls 14 6.3 Markers 15 6.4 Spectrum average

4、 15 6.5 Recording / Playback 16 6.5.1 Recording 17 6.5.2 Playback 17 6.5.3 Moving forward and back during playback 18 6.6 Other Controls 18 6.6.1 Attenuator (ATT) 18 6.6.2 Preselection filters (Presel) 18 6.6.3 ADC Preamplifier (Preamp) 19 6.6.4 ADC Dithering (Dither) 19 6.6.5 Amplitude (Reference L

5、evel and Scale) 19 6.6.6 Mode (AM,SAM,CW,RTTY,LSB,USB,FM,DRM,USER) 19 6.6.7 Volume and Mute (AF Vol) 20 6.6.8 Noise reduction (AF NR) 20 6.6.9 Noise blanker (NB) 20 6.6.10 Signal strength meter 20 6.6.11 Automatic Gain Control (AGC) 20 6.6.12 Frequency calibration 20 6.6.13 Memory window (MEM) 21 6.

6、7 Factory default settings 22 7. HFSpan software utility 23 8. Technical specifications 24 9. European Community CE Conformity 25 10. Information to the user (FCC PART 15) Declaration of Conformity 25 11. Disposal of your old appliance (Directive 2002/96/EC WEEE) 26 Page 3 1. RECEIVER DESCRIPTION PE

7、RSEUS 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 d

8、igital 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

9、-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 provi

10、des 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 amplifier and speakers systems, rather than the standard speakers bundled along with most PCs. Warning! Read carefully the

11、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 4 1.1 FRONT PANEL On - Receiver status. The receiver detects the connection to the PC USB Host Controller.

12、 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 indicat

13、es 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

14、. 1.2 REAR PANEL 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 suppli

15、es may seriously damage the receiver. USB 2.0 USB 2.0 Cable socket. Connect the receiver to a PC USB 2.0 port with the cable provided with the receiver. Page 5 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/ DV

16、D 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

17、 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. This screen may be seen, depending on the version

18、of Windows used. The software asks to log on to the Windows update site. Tick No not at this time and click next. 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 6 In the next dialog,

19、 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 letter of the CD-ROM drive unit where the Perseus distribution CD-ROM is located). Then click Next. Windows XP informs the u

20、ser about the status of the Windows Logo testing of the USB drivers provided with the software. Click “Continue Anyway”. Allow the software driver installation to set up automatically. Page 7 The USB drivers are now installed. 3. SYSTEM REQUIREMENTS - 2 GHz Pentium IV CPU with 512 MB RAM (for 125 KS

21、/s, 250 KS/s and 500 KS/s) - 2.5 GHz Dual Core CPU with 1 GB RAM (for 1 MS/s and 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 - 10 GB or more internal hard-disk - Sup

22、ported 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

23、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 ANT

24、ENNA 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 dist

25、ributed software. Page 8 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 f

26、or example My Documents or on a 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 shortc

27、ut. 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) The operating software is free standing, and does not install any files to the hard drive, once the

28、 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

29、, eg using an ATU or a MW loop, which peaks on a single frequency. Perseus operating software default screenshot Page 9 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 Pan

30、e - 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

31、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 an

32、d turning the wheel changes frequency by 1MHz at a single wheel click. Mouse over 5 changes frequency by 100kHz per click etc. The 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 c

33、lock 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 numb

34、ered buttons below. The direct frequency entry box pops up just below the main frequency box. Page 10 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 freque

35、ncy 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. O

36、ne 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

37、hour) The dxer could stop the initial recording, and in only one click, 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. Ho

38、ld 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

39、 The Filter bandwidth Pane close up Page 11 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

40、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 CLIC

41、K 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 buttons may give the impression of fixed bandwidth, with settings of 25, 12, 6, 3, 1.6 a

42、nd 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 red

43、uce 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

44、 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

45、 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 t

46、here 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 from UK Talk Sport. If the emulated Pass Band Tuning is used, the shaded filter area is right clicked, held and drag

47、ged to the left, away from the carrier of Talk Sport. CBC is then heard free of interference. The freq centred on 1070 (left), but using PBT the QRM vanishes (right) Page 12 6.1.6 NOTCH FILTER This function can notch out a selected carrier, or area of spectrum close by the desired signal. The above

48、PBT example worked well with CBC 1070, and the Euros on 1070. An excellent example of the notch filters 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 men