Steve:
I'm going to see if I can find another connecting cable to try.
Will keep everyone posted.
73 de KB8TYJ
----- Original Message -----
From: "Steve" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, May 08, 2012 10:46 AM
Subject: Re: Interesting RFI Problem
> Ok, in that case, your issue is likely RFI being introduced through the
> connecting cable.
>
> I agree with another lister's comment that a small cap to ground might
> help,
> although it will affect the frequency response somewhat.
>
> It almost seems to be one of those things where it might be more bother
> than
> its worth if you have other speakers that are impervious to the Rf field.
> ----- Original Message -----
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, May 07, 2012 9:56 PM
> Subject: Re: Interesting RFI Problem
>
>
>> 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
>>>>>>
>>>>>>
>>>>>
>>>
>
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