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72552Re: 6m/4m/2m RXTX Ensemble transceiver

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  • kb9gpm
    Mar 3, 2013
    • 0 Attachment
      Hi Tony

      Thanks for the update. I sure know how life gets in the way of our hobbies.

      73s
      Daivd KB9GPM


      --- In softrock40@yahoogroups.com, "Parks, Tony" <kb9yig@...> wrote:
      >
      > Hi Dave,
      >
      > Still a possibility but just have not had the time to work on it.
      >
      > Thanks for asking.
      >
      > 73,
      > Tony KB9YIG
      >
      > On Sat, Mar 2, 2013 at 7:51 PM, Dave Watson <davewatson@...> wrote:
      >
      > > **
      > >
      > >
      > > Any updates on consideration for this kit?
      > >
      > > Dave (W4DJW)
      > >
      > > --- In softrock40@yahoogroups.com, Tony Parks wrote:
      > > >
      > > > Hello All,
      > > >
      > > > The thought would be to use the Si570 output for generation of the
      > > > quadrature clock signals as well as for up/down conversion clock.
      > > >
      > > > For 144 MHz operation the Si570 output frequency, f, would be set such
      > > > that f+f/4 = 144. This would give f= 115.2 MHz. The RX and TX IF
      > > > frequencies would then be f/4= 28.8 MHz.
      > > >
      > > > For 50 MHz operation f+f/4 = 50 would give f= 40 MHz and an IF frequency
      > > > of 10 MHz.
      > > >
      > > > To keep the kit price as low as possible I do favor a single circuit
      > > > board approach.
      > > >
      > > > Thanks and 73,
      > > > --
      > > >
      > > > Tony Parks
      > > > kb9yig@
      > > > http://www.kb9yig.com
      > > >
      > > >
      > > >
      > > >
      > > > On Sun, 2012-06-03 at 12:14 +0000, Tony Parks wrote:
      > > >
      > > > >
      > > > >
      > > > > Good Morning All,
      > > > >
      > > > > A number of people have ask when is a 6m/4m/2m RXTX Ensemble
      > > > > transceiver kit going to be available? I too have been thinking about
      > > > > such a kit.
      > > > >
      > > > > My thought is that the RF output would be generated at an IF frequency
      > > > > and then up-converted to the VHF band of choice. Amplification and LP
      > > > > filtering would then be done at the VHF band to produce about one watt
      > > > > output power. An attempt would be made to fit the circuits on the same
      > > > > size circuit board as the RXTX Ensemble.
      > > > >
      > > > > All of the SoftRock kits are based on good input from others so I am
      > > > > again open to suggestions from the group. I would be most interested
      > > > > in your comments!
      > > > >
      > > > > Thanks and 73,
      > > > > Tony KB9YIG
      > > > >
      > > > >
      > > > >
      > > > >
      > > > >
      > > >
      > >
      > >
      > >
      >
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