Steve:

When the speaker is disconnected from the Rig, I get no RFI.  No RFI either 
through the TS590's internal speaker, or through any other external speakers 
I have tried, both amplified and nom-amplified.

73 from Tom Behler: KB8TYJ

----- Original Message ----- 
From: "Steve" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 07, 2012 8:32 PM
Subject: Re: Interesting RFI Problem


> Did you try the speaker disconnected from your rig as well?  Try
> disconnecting it from both, what happens?
>
> You connect the quarter-wave counterpoise to your tuner/rig ground.
>
>
>
> ----- Original Message ----- 
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, May 07, 2012 6:18 PM
> Subject: Re: Interesting RFI Problem
>
>
>> Martin:
>>
>> I tried the speaker with the wall-wart disconnected and on battery power,
>> but no joy.
>>
>> I also tried chokes on both the wallwart power cord, and the speaker 
>> wire,
>> but again, no luck.
>>
>> I don't have small-enough chokes to tri for both conductors in the 
>> speaker
>> wire and the wallwart wire, but that is an interesting thought.
>>
>> Keep those ideas coming!
>>
>> Tom Behler: KB8TYJ
>>
>> ----- Original Message ----- 
>> From: "Martin McCormick" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, May 07, 2012 3:00 PM
>> Subject: Re: Interesting RFI Problem
>>
>>
>>> You might disconnect the speaker from the wall wart and
>>> the audio source which means, of course, that you can't use it
>>> right now, but see if the RFI is still audible. Then, connect
>>> the wall wart but leave the audio input lead off and see if your
>>> RFI comes back. It is possible that it is coming in via both the
>>> audio input cable and the power cable. You might need chokes on
>>> both sides of the audio input line and both conductors in the
>>> power cord from the wall wart.
>>>
>>> Bob Martin writes:
>>>> 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
>>>>
>>>>
>>>
>