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Re: [softrock40] Building the Ensemble RXTX: Testing the Tx Mixer

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  • Alan
    ... Subject: [softrock40] Building the Ensemble RXTX: Testing the Tx Mixer ... Paul, Very likely. If it is not clocking you will get 0 or 5 volts. I made a
    Message 1 of 2 , Nov 27, 2012
      ----- Original Message -----
      Subject: [softrock40] Building the Ensemble RXTX: Testing the Tx Mixer


      > Testing: All voltages correct except the clock inputs pins 2 & 14, which are showing 3.99 volts ! Same on the RX mixer !
      >
      > Is this normal when testing with an ordinary meter, as we are measuring also RF ?
      >

      Paul,

      Very likely.
      If it is not clocking you will get 0 or 5 volts.
      I made a simple integrating probe after someone in this group suggested it.
      https://sites.google.com/site/g4zfqradio/levels-measured-in-a-softrock-tx about 1/3 way down, the green completed one.
      But the not 0 or 5 is good enough.

      73 Alan G4ZFQ
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