Well, I am a new SW-55 owner as well -- an incredible radio. I'll check
this out, but I think this is going to fall into the realm of things we
put up with
for the amount of stuff that's packed into these receivers.

I have not had a SONY portable yet, including SW-100 and 2010s, that
had its oscillator smack on frequency across the range.

g8tzl wrote:

I have just bought a Sony SW55. I am generally very impressed with the
radio in terms of both performance for a small portable and build
quality. However , I am experiencing a problem regarding SSB which is
not related to warm up drift or the SSB "warble" problem.

When I tune to a known stable frequency such as the weather Volmet
transmission on 5.505MHz USB , around 50% of the time the radio is
more or less spot on frequency and you can tune across the signal in
the normal way. However , at other times when I switch on I need to
tune down 1KHz to 5.504MHz to resolve the signal and as I tune across
the signal I can again resolve clear audio another 1 KHz lower on
5.503MHz - its as if there are 2 spots to resolve the signal as you
tune across it!. Sometimes I can switch off the radio and switch on
again and I am back to spot on frequency of 5.505 - other times I need
to rest the radio overnight before it will come back onto frequency.

I wonder if anybody else has experienced this problem? Hopefully its
an alignment problem or something simple. Does anybody know any fix or
whether there is a Sony radio "frequent faults and fixes" web site.

regards

Martin