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7 members, 54 messages added in the last 7 days
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  • Re: RXTX Ensemble transmit spurs.

    C62? It looks like that is the one on the mixer 5V pin 16 supply. Mixer pin 8 ground soldered OK? Can you see ripple on the 5V line?

    ve7vv 2 hours ago
  • Re: RXTX Ensemble transmit spurs.

    Thanks Roger, I had noted nasty stuff around the LO on receive and avoided the issue, so no problem. I have no idea how to debug this, but will try and find a

    pvrose@btinternet.com 3 hours ago
  • Re: RXTX Ensemble transmit spurs.

    Phillip, please excuse me if I am stating the obvious to you. Do you hear the nasty modulation when listening to the LO freq? If so, problem would seem not to

    ve7vv 3 hours ago
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Group Description

The SoftRock-40 is a small, low-cost, good performing 40-meter "software defined radio" receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer's sound card. It was designed by Tony Parks, KB9YIG and Bill Tracey, KD5TFD as an "SDR sampler project" for hams everywhere to easily try out software defined radio.

This is the place to express your enthusiasm, ideas, experiences, modifications, extensions and maybe more ?


Aug 2, 2012 SoftRock Kit Orders Now Taken Online fivedash.com

Dec 21, 2008 Lite II [docs]

Nov 30, 2008 Electronically Switched v9.0 HF BPF kit

Oct 22, 2008 v9.0 50 and 144MHz converter (Beta) [docs]

Oct 2, 2008 v9.0 Lite+USB Xtall [docs, notes]

Jul 29, 2008 USB I2C interface kit [docs]

Jul 12, 2008 RXTX+Xtall v6.3 transceiver [docs, proto]

Group Information

  • 10155
  • Shortwave
  • Sep 11, 2005
  • English

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