John;
These kind of problems can really drive someone crazy. I had an old
Collins Radio KWM-2 that had the same time schedule. It would drop the
speaker audio level about 10db, then come back up. I just turned it on
about 30 minutes before I wanted to use it. It took me about a year to
find a loose crimp on a chassis mount filter cap. The only recommendation
is to wiggle wires and use freeze spray, and don't assume it has to be in
a specific location. Otherwise, talk to yourself in short unfinished
sentences<grin>.
Dave
WA0ZZG
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> Today's Topics:
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> 1. FT-1000 frequency jump (John Ahlbom)
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 23 Oct 2008 14:53:04 +0300
> From: John Ahlbom <john.ahlbom@gmail.com>
> Subject: [Yaesu] FT-1000 frequency jump
> To: yaesu@contesting.com
> Message-ID: <490065A0.2060409@gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> FT-1000, serial OG060181 (1990 ?)
>
> Problem and symptom:
>
> Sudden 300 Hz jump up in frequency both on transmit and main receiver
>
> reception, CW and SSB, LSB and USB. Audible change in passband sound.
>
> Happens 10 to 20 minutes after switch-on and usually returns to initial
>
> frequency after a few seconds or a minute. Repeats are not uncommon.
>
> Seldom noticeable after warm-up. Does not prevent operating, but is a
>
> nuisance. PLL unit has been replaced to no avail. The rig is certainly
>
> old, but I have grown accustomed to its performance in other respects.
>
> Any correcting suggestions?
>
> John Ahlbom, OH5NZ
>
> john.ahlbom@gmail.com
>
>
>
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> End of Yaesu Digest, Vol 70, Issue 9
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