Re: need help with tx rx 6.2
- --- In email@example.com, "AD6HF" <ad6hf@...> wrote:
> In testing out PTT I run a jumper from r33 to r 35 then measure theHi, Bob.
> 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?
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.