On Thu, 27 Mar 1997 21:53:18 +0000, you wrote:
>net mail address: cooker2@epo.gov.on.ca
>
>Greetings. I have a 4-year-old Yaesu FT-990 which I purchased new.
> Recently I have begun to get reports of a hum or buzz on my signal. I
>have monitored it myself and notice it is there on SSB and AM when I key
>the mic.
>
> I do not hear it when I transmit using MOX with mic disconnected, which
>would suggest something amiss in the audio portion of the transmitter.
> (I have tried a different mic but the problem remains.) It becomes more
>pronounced when I turn on the processor. I run it barefoot with no
>amplifier.
>
>Can anyone suggest what the problem might be and what is required to fix
>it? Other than this, the rig performs excellently.
>
>Sure hope someone can help.
>
>Many thanks. 73.
>Bob VE3BDB
>
>net mail address: cooker2@epo.gov.on.ca
>
Check your coax and connectors. It sounds like the mike may be picking
up stray RF in the shack.
Mark
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