Bob:
Where would you connect the counterpoise on the speaker?
I get the tuner part, but not the speaker.
73 from Tom Behler: KB8TYJ
----- Original Message -----
From: "Bob Martin" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 07, 2012 2:32 PM
Subject: Re: Interesting RFI Problem
>I had that problem on 40 meters with a set of Utah speakers. Tryed chokes,
> shortening the leads to the speakers, and finally a counterpoise for 40 as
> I
> was on the second floor. The counterpoise did the trick. Made it by
> shorting a 33 inch of ordinary electrical wire on one end and attaching
> the
> others to the terminals on my tuner.
>
> 73:
> Bob Martin
>
> EchoLink Node - 55127
> Please visit http://www.wan-leatonks.net.
> ----- Original Message -----
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, May 07, 2012 7:04 AM
> Subject: Interesting RFI Problem
>
>
>> 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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