Sony SW55 - SSB problem
 

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

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

On Fri, 10 Sep 2004 22:30:54 -0400, Dan Robinson
wrote:

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



Press calibrate.

Kameron Spesial wrote in message . ..
On Fri, 10 Sep 2004 22:30:54 -0400, Dan Robinson
wrote:

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



Press calibrate.

Have tried Calibrate but no effect. Problem seems to be more of an
intermitant type. Sometimes spot on freq - 10 minutes later you need
to tune 1KHz lower on USB and then 2 spots where you can resolve
signal as you tune across it ? AM works OK so maybe something to do
with BFO circuit?

regards

Martin

Kameron Spesial wrote in message . ..
On Fri, 10 Sep 2004 22:30:54 -0400, Dan Robinson
wrote:

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



Press calibrate.

Have tried Calibrate but no effect. Problem seems to be more of an
intermitant type. Sometimes spot on freq - 10 minutes later you need
to tune 1KHz lower on USB and then 2 spots where you can resolve
signal as you tune across it ? AM works OK so maybe something to do
with BFO circuit?

regards

Martin