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Re: [softrock40] Rocky and SR-40

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  • Bill Dumke
    Is the Exclusive OR to correct the duty cycle like with the QRP-2001? Bill WB5TCO
    Message 1 of 10 , Dec 1, 2005
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      Is the Exclusive OR to correct the duty cycle like with the QRP-2001?

      Bill WB5TCO

      brainerd@... wrote:

      > I have a Tayloe Detector board that uses an exclusice OR in place of
      > the first FF.
      > When fed with one output of the IQ VFO (a AD9854), works great with
      > SDR software
      > and Rocky at 2X freq. Can get opposite sideband supression of 55 - 60 db.
      >
      > Dave - WB6DHW
      >
      > On 1 Dec 2005 at 11:43, windy10605@... wrote:
      >
      > > Just thinking again............
      > >
      > > Since the Rocky program compensates for and corrects phase and amplitude
      > > errors, has anyone tried to see if it's sufficient to where you can
      > > remove the first divide by 2 FF ahead of the Tayloe detector (which was
      > > in there to "guarantee" a 50% duty cycle for proper quadrature) ? That
      > > would double your DDS range.
      > >
      > > 73 Kees K5BCQ
      > >
      > >
      > >
      > >
      > > Yahoo! Groups Links
      > >
      > >
      > >
      > >
      > >
      > >
      >
      >
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