[TenTec] Omni VI+: low TX and RX on 12 meters
dukeshifi at comcast.net
Thu Dec 27 20:45:18 EST 2018
A decent scope would do fine. The frequency here is never greater than 39 MHz.
> On Dec 27, 2018, at 7:27 PM, Peter Bertini <radioconnection at gmail.com> wrote:
> As far as receive, the last low pass filter covers from 22 to 30 MHz, so if
> ten meters works that rules out a relay problem. You can verify relay
> select voltage for both 10 and 12 meters on the last pin of J14. A bad "or"
> steering diode could drop a band, but that is not likely.
> As Gary suggested, check the soldering where he advised to do so.
> Being able to measure The last miserable project Omni VI I undertook had a
> bad solder joint in one of the bandpass filters on the LO Mixer board. Low
> LO on RX and TX, low power and very deaf RX. I suspect measuring the LO
> level on Jack 26 for each band might give a clue if you have a RF
> milli-voltmeter or milli-watt meter.
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