@TomDeanbd9da08: "I have a Yaesu FT200M which I have installed in my truck for the purpose
of transmitting an APRS signal on 144.390.  Each time I set the radio on
this frequency, turn the radio off and then back on, the frequency
changes to 144.385.  Turn it off and on again and it tunes to 144.380,
etc., etc.
Anyone have any idea how to turn this "feature" off so the radio stays
on 144.390 when I turn it on and then off?  I've read through the manual
but don't see anything.
Thanks.
Tom Dean"
    @otakuscrownntp: "<quote>
Tom, I suspect that there might be a cabling issue that is causing the 
radio to erroneously register a push of the "down" button on the 
microphone (if that model is so equipped).  I ran into a similar issue 
with an FT-2800M a few years ago;  that model in particular was also 
susceptible to erratic behavior from RF coming in through the microphone 
line.
I guess the best place to start would be to disconnect your APRS interface 
and see if the problem persists.  If it goes away with the interface 
disconnected, it could be a cabling issue.
Steve
KG4PEQ"
    @fmmck: "<quote>
Tom-
I suggest you use a memory channel preset to 144.390.  If memory 
channels are tunable, look for a setting to turn that feature off.
It is possible your frequency adjust knob is set right at the point 
where it changes frequency.  This could be purely random, or could be 
due to a defective rotary encoder.
Another possibility might be that the radio has a CMOS battery that is 
getting weak.
Fred
K4DII"
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