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Re: FT-101E Signal Generator is off frequency

 

OK. Does your radio have the WWV receive crystal installed?
If yes, tune the receiver to it and zero beat the carrier while listening with headphones.?
Then off tune a bit so you hear a 400hz to 800hz “tone”. Don’t be confused by the modulated audio WWV also sends out. It stops occasionally so there is only a carrier.?

Now flip the marker on. ?
If close in frequency you’ll hear the difference in tone between the dead on carrier frequency of WWV and the 25KHz-100KHz crystal oscillator in your radio.?
On your regulator board (where the actual marker crystal and oscillator is located), there is TC1, a 50pF trimmer cap to adjust the marker frequency.?
If you can’t pull it in with that trimmer, you’ll need a board repair or a new marker crystal.?
Another way is to go to 160m band and see if you can use the preselector ?maxed out and tune in a local AM radio station around 1600khz to 1700khz and zero beat their carrier ... which is frequently well within 25Hz to 50Hz too.?

On Wed, Jul 20, 2022 at 10:49 AM Scott Toth <nd4l@...> wrote:
Thanks?Bruce.? Something is off somewhere, I'm just not sure where.? I know that if I pull up the 14.300MHz Maritime Mobile net, I can center the VFO dial on 14.300 and hear the net fine, so I feel like the VFO and its dial are calibrated accurately (at least in USB).? If I leave the VFO on 14.300 (while tuned in on the net control) and turn on the 100KHz generator, I don't hear the tone at all.? If I move the VFO down to 14.2986 (1.4KHz down), I can zero-beat between USB and LSB there.? Shouldn't I be able to zero beat between USB and LSB at 14.300 and hear the net control on 14.300 at the same time?

Scott
From: [email protected] <[email protected]> on behalf of Bruce Collins <kb0tj1@...>
Sent: Wednesday, July 20, 2022 11:56 AM
To: [email protected] <[email protected]>
Subject: Re: [Yaesu-FT-101] FT-101E Signal Generator is off frequency
?
Plus, you have to adjust the 500KHz back dial of the VFO every time you switch from LSB, USB or CW... relative to zeroing your market generator.?

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