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TOPIC: Any questions

Any questions 07 Jan 2013 18:33 #1

  • VassiL
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If you have any questions about SunSDR2 transceiver, or ExpertSDR2 software, about using it, etc. You can ask us here.
Василий, Vasily,
Expert Electronics
Last Edit: 08 Jan 2013 13:03 by VassiL.
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Re:Any questions 15 Jan 2013 07:48 #2

Hello, I have some questions.
1. What is maximum span of signal shown on waterfall in ExpertSDR2? 48, 96, 192kHz or maybe more?
2. What is minimum RF power to set by software in HF and VHF operation?
3. Could software display frequency offset when transverter is used? e.g. 1296.000.0 MHz ? Is there any option to using transverters?
4. I saw in software RX1 and RX2. Does possible to receive 2 frequencies at the same time? If yes could be HF and second on VHF ?
5. Could SunSDR2 be used with other software to work digital modes ?

Lucjan SQ9VPA
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Re:Any questions 15 Jan 2013 08:48 #3

  • VassiL
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sq9vpa wrote:
Hello, I have some questions.
1. What is maximum span of signal shown on waterfall in ExpertSDR2? 48, 96, 192kHz or maybe more?
2. What is minimum RF power to set by software in HF and VHF operation?
3. Could software display frequency offset when transverter is used? e.g. 1296.000.0 MHz ? Is there any option to using transverters?
4. I saw in software RX1 and RX2. Does possible to receive 2 frequencies at the same time? If yes could be HF and second on VHF ?
5. Could SunSDR2 be used with other software to work digital modes ?

Lucjan SQ9VPA
Hello Lucjan,
1. Today we have 40kHz, 80kHz, 160kHz, 312kHz a maximum span of signal on waterfall and panadapter. It is a capture mode with high resolution of signal(24 bit). In the new version of ExpertSDR2 we are planning to insert bandscope with maximum span of panadapter and waterfall from 20kHz to 80 MHz. You can zoom it to any width you want(50kHz, 500kHz, 3 MHz, 10MHz etc.).
2. You can set output power from 0 to 20 W smoothly. Minimum output power 0.1W or less. We have a second direct output from DUC with output power 10dBm(10mW) for any applications, for example: signal generator for measuring, high performance signal modulator for using with transverters etc.
3. Today ExpertSDR2 doesn't have a frequency offset for transverters, but in the new versions we will do it. We have all for operating with an external transverters for any frequencies.
4. Yes, we have two receivers. They can work simultaneously in one Nyquist zone on any bands, like 80M and 20M, or 40M and 6M etc.. in range 0-80MHz or 80-160MHz. Two receivers can not work in HF and VHF simultaneously.
5. Yes, ExpertSDR2 could be used with other software like mixW, Logger32, UR5EQF etc. for Log and working in Digi modes.
Василий, Vasily,
Expert Electronics
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Re:Any questions 15 Jan 2013 09:30 #4

Many thanks for your answer.

You wrote 0-80MHz. So thats meant transceiver work aslo on 4m (70 MHz) band? In europe almost all countries had access to this band...

I read in description that transmiter work up to 75MHz. Is it true?

Kind regards,
Lucjan SQ9VPA
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Re:Any questions 15 Jan 2013 10:26 #5

  • VassiL
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We guarantee technical characteristics in 1-65 MHz and 95-148 MHz frequency range. But absolutуly receiver works in 0-80MHz and 80-160MHz. When you receive signals near 80MHz, for example 70MHz, you also can receive signal from second Nyquist zone on the frequency 90MHz. Because both Nyquist zones are received simultaneously and signals can not be rejected by Nyquist filter 0-75MHz near 80MHz. If you have radiostation on frequency of 90MHz it will prevent from normal signal receiving on 70MHz. If you don’t have QRM on 90MHz you can work on this band. Because we do not garantee this band.

Our HF transmitter works in frequency range 1-65MHz, it is the reason why we can not transmit on 4M band. But you can use external Power amplifier on 4M band and connect it to DAC OUT connector and you can work on this band.

That is all information about working on 4M band.
Василий, Vasily,
Expert Electronics
Last Edit: 15 Jan 2013 10:26 by VassiL.
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Re:Any questions 15 Jan 2013 10:29 #6

OK, Manty thanks.

I think now I know what I need.

Tell me shipping cost to Poland and total cost of transceiver. And also how much time you need to prepare and send.

Kind regards,
Lucjan
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Re:Any questions 15 Jan 2013 10:57 #7

And one more questions (4m band)...

Does possible to bypass bandpass filters by software?

I'm asking because I can use external very sharp bandpass filter for 70-70.5MHz to eliminate 90MHz broadcast stations. But 65MHz of LPF cut off frequency decrease sensitive on 70 MHz.

Trasmit side is clear for me from DAC out. I can use hybrid PA for 4m band... OK.
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Re:Any questions 15 Jan 2013 12:14 #8

  • VassiL
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Yes, SunSDR2 has direct ADC Input connector. You can use it for 4M band filter or for transverter.

Shipping cost to Poland 60-70USD.
Price on SunSDR2 is here:
SunSDR2 -- 1540 EUR or 1960 USD
WiFi-unit -- 88 EUR or 112 USD
PLL-unit -- 69 EUR or 88 USD
Shipping cost -- 55 EUR or 70USD
Total Price: 1752 EUR or 2234 USD

Delivery time 10-14 days by EMS Post.
Also we have order production time of SunSDR2 transceiver - about 3 weeks after the order is made.
Warranty period 1 year.
Василий, Vasily,
Expert Electronics
Last Edit: 15 Jan 2013 12:29 by VassiL.
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Re:Any questions 15 Jan 2013 19:20 #9

Many Thanks for reply.

Tell me ADC Input needs aditional preamplifier or internal used?

Many thanks in advance.
Lucjan SQ9VPA
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Re:Any questions 15 Jan 2013 20:09 #10

  • VassiL
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Internal ADC implifier +20dB used. Sensitivity about 0.15uV. But you can use external PREAMP if you need.
Василий, Vasily,
Expert Electronics
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Re:Any questions 16 Jan 2013 09:49 #11

Many Thanks VassiL,
link
I think I will order your transceiver very soon.

Perhaps I'll have a few more questions but at the moment it all. :)

Kind regards,
Lucjan SQ9VPA
Last Edit: 25 Sep 2013 20:52 by sq9vpa.
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