Loading ...
Sorry, an error occurred while loading the content.

5322Re: [softrock40] Softrock V7

Expand Messages
  • Tony Parks
    Jul 6, 2006
    • 0 Attachment
      Hi John,
      Yes, that could be done with the v7.0 but it also could be done with the v6.0 at a lower cost.  The transmit function would be at the fixed oscillator frequency.
      In the v6.0 either of the quadrature clock signals could be used to drive an external class C amplifier.  The clock signal would need to be buffered and filtered prior to the keyed amplifier stage.  Use the SoftRock mute feature, (open circuit pins 1 and 2 of JP2), during transmit and an antenna switch would complete the circuit.
      Tony KB9YIG
      ----- Original Message -----
      From: jwtitmus
      Sent: Thursday, July 06, 2006 6:28 AM
      Subject: Re: [softrock40] Softrock V7

      OK Thanks Tony, does this mean you could put any xtal (say 3.579 colourburst) in a V7, and you would get +/- 48Khz span, and use this oscillator through a small amp as a simple CW transmitter, thereby having a very simple 80m transceiver?
      ----- Original Message -----
      Sent: Thursday, July 06, 2006 8:48 AM
      Subject: Re: [softrock40] Softrock V7

      Hi John,
      The v7.0 is intended as a 10m IF for converters and with the 28.06 MHz crystal supplied with the kit the coverage is +/- 48 kHz each side of 28.06 MHz when used with a soundcard that can sample at 96 kHz.  The quadrature clocks result from using a phase shift network prior to a voltage comparator to get the clock that is shifted by 90 degrees.
      The v7.0 can be used as a receiver and I have built several for 20m.  Seems to make quite a reasonable 20m receiver.  v7.0 kit price is $19 for DX which does include the postage costs.
      Bill, KD5TFD, has tested the v7.0 at 10m and has the following info at his website:
      Got a SoftRock V7 beta built and checked out today  - looks pretty
      good.  MDS of -112 dbm with a Delta 44 and -109 dbm with an Extigy.  Pics
      and PowerSDR spec shots @
      Thanks and 73,
      Tony KB9YIG

      ----- Original Message -----
      Sent: Wednesday, July 05, 2006 6:24 PM
      Subject: [softrock40] Softrock V7


      Just wondering what the diference between the V6 and V7 is, (what
      frequency does the V7 cover and what xtal multiplier does it use?), I
      have built a V6, and am thinking of ordering a V7 as well.


      John de VK4JWT

    • Show all 7 messages in this topic