Re: Yaesu FT480R
Remind me what the manual has to say about the freq generation system. All I can remember just now was there is a VCXO which is used for fine freq interpolation, with the varicap voltage set by a preset resistor chain. This was normal for that generation of synthesised transceivers.
I think you will find one of the oscillators increments in something like 2.5kHz steps over a 25kHz range. Or maybe it has only two steps, separated by 2.5kHz. See if you can find one oscillator that tries to do this but fails.
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- Julian
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