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Date: | Mon, 7 May 2012 07:04:50 -0400 |
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Hi, all.
Well, I have an interesting little RFI problem here in the home shack that
I've been scratching my head over lately.
At the estate sale I've been talking about, I picked up a Realistic 32-2040
amplified speaker. The speaker either runs on 6 C-cell batteries, or the
supplied 9-volt wallwart.
The speaker sounds terrific, with excellent quality audio that I can adjust
in terms of tone and volume from the speaker itself.
However, when I transmit with my TS590, using my amplifier, I get lots of
RFI through the speaker itself.
I have tried RF chokes on both the Wallwart power cord, and the phono plug
connection between the Ts590 and the speaker itself, but no joy.
I have tried running the speaker just on batteries, but still get the RFI.
Obviously, this particular speaker is more susceptible to RFI than usual,
since I don't get the RFI at all when using other speakers such as my
Motorola amplified speaker or just a standard external speaker.
Does anyone have any suggestions as to what else I might try?
I'd love to use the speaker since it sounds so good, but the RFI issue may
make that impractical in the long run.
73 from Tom Behler: KB8TYJ
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