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Re: need help with tx rx 6.2

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  • R. R. Robson
    ... Hi, Bob. Your measurements are OK. The important measurement for testing PTT functionality is whether you get ~ 12 Vdc at the 12V Pad when you have PTT-In
    Message 1 of 2 , Aug 30 8:07 AM
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      --- In softrock40@yahoogroups.com, "AD6HF" <ad6hf@...> wrote:
      > In testing out PTT I run a jumper from r33 to r 35 then measure the
      > voltage from r34 and find 11.69 volts the 12 volt shows 12.34 volts .
      > When the jumper is removed I measure 12.48 volts at r34 and the 12
      > volt pad registers 0.Ive double checked for component placement.
      > Can anyone help?

      Hi, Bob.

      Your measurements are OK. The important measurement for testing PTT
      functionality is whether you get ~ 12 Vdc at the 12V Pad when you have
      PTT-In high and ~0Vdc at the 12V pad when PTT-In is low.
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