2 thoughts on “DSCN0064

  1. Peter

    Hi Chris,
    Has any thought gone into improving the stability and precision of the synthesiser to improve WSJT operation? The Si570 is notoriously temperature sensitive and has no capacity to be frequency stabilised via a GPSDO or similar.

    Reply
    1. m0nka Post author

      Hi Peter,

      Have you checked docs ? There is software compensation routine in firmware that usually is good for +-10 Hz long term precision. Also in 0.6 i have added analog heater, but it is not available on the current logic board. You can still make on small proto PCB and glue on top
      of the clock chips. This is working fine on my 70 meg radio, usually give me +- 1Hz precision when on WSPR.

      73!

      Reply

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