Tom,
I guess there are any number of things that could be going on, and
you've gotten a lot of good suggestions on things to check.
Here is a link to some info from the Heil sight on this subject. I'm
not suggesting that you tear into the mic connector at this point, but
figured I'd throw it out to add to your growing pile of info:
http://heilsound.com/amateur/tips/rfi_removal_mics.php
73, Steve KW3A
On 4/17/2013 8:31 PM, John Miller wrote:
> I would try that other mic just for sure, the hanging loop is metal if you
> want to try touching that. If you have a hum though, an actual hum, I'd
> really have to wonder if there's something else going on if it's even with
> that mic. That should not be happening.
> ----- Original Message -----
> From: "Tom Brennan" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, April 17, 2013 2:30 PM
> Subject: Re: mfj 931
>
>
>> I do have another mic, John, and can try that. I believe that I've tried
>> that
>> in the past and it didn't help but I'll give it a try. The other mic is
>> the
>> little Kenwood mobile mic that comes with the rig. It is all plastic so
>> would
>> at least not have me in contact with metal.
>>
>> Tom
>>
>>
>> Tom Brennan KD5VIJ, CCC-A/SLP
>> web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
>>
>> On Wed, 17 Apr 2013, John Miller wrote:
>>
>>> Date: Wed, 17 Apr 2013 08:29:32 -0400
>>> From: John Miller <[log in to unmask]>
>>> Reply-To: For blind ham radio operators <[log in to unmask]>
>>> To: [log in to unmask]
>>> Subject: Re: mfj 931
>>>
>>> IF you're getting a shock and have a hum, the hum isn't RF most likely,
>>> do
>>> you have another mic you can try? Have you tried that already or maybe
>>> even
>>> another radio? You can have the coax shield not making contact and have
>>> it
>>> still have a good SWR, I learned that lesson once.
>>> ----- Original Message -----
>>> From: "Tom Brennan" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Wednesday, April 17, 2013 7:09 AM
>>> Subject: Re: mfj 931
>>>
>>>
>>>> I've got swr of 1.2/1 and do have a choke in place. No shocks from the
>>>> radio
>>>> itslef, just the mic when transmitting.
>>>>
>>>> Tom
>>>>
>>>>
>>>> Tom Brennan KD5VIJ, CCC-A/SLP
>>>> web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
>>>
>>
>
>
>
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