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41677Re: [softrock40] Re: An Idea, tell me what you think:

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  • Lee Boulineau
    Mar 2, 2010
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      I think Kanga US has a 1-100 Mhz DDS.....

      73 de N4MVL Lee

      --- On Tue, 3/2/10, Loftur Jónasson <lofturj@...> wrote:

      From: Loftur Jónasson <lofturj@...>
      Subject: Re: [softrock40] Re: An Idea, tell me what you think:
      To: softrock40@yahoogroups.com
      Date: Tuesday, March 2, 2010, 9:29 AM


      Hi all,

      Just to chime with my two cents :)

      > There is a "black hole" in the ham kit/product market it is the VFO.
      > What is needed is a VFO kit (DDS or Si570-based) with an actual
      > "spinner" knob that covers near DC through 120 MHz (for divide by four
      > PC-based SDR's) or at least near DC through 75MHz for dual conversion
      > superhets with 45MHz first IF and 455kHz second IF. There is nothing
      > like this out there. We have ADI9834/5-based knob VFO's that go through
      > 34MHz or 21MHz with pretty lousy SFDR, then there are the AD99XX DDS's,
      > expensive and I don't know of one with a tuning knob.
      > Yes I know about KB5CQ's Si570 tuner/display, it is not a "spinner".


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