Tom,

If I remember right, you are running a Kenwood TS-2000.  If you are 
using the Kenwood desk mic with the curly cord (forget the number), you 
may have to run a wire from  the  body of the mic unit  to the radio. 
This is a common problem and I've seen it reported on a number of 
Kenwood lists over the years.  Even our SK friend Kevin  K7RX dealt with 
it.

Even if using a different mic, .     it wouldn't hurt to try a ground 
wire between mic and radio.  Kenwood has some sort of floating ground 
involved in the mic connection and sometimes a good chassis ground 
between mic and radio will do wonders.


73, Steve KW3A

On 4/17/2013 7:29 AM, Howard, W A 9 Y B W wrote:
> Hi Tom,
>
> I want to explore Howard Kaufman's questions further.
>
> 1. What is the radio and mic?
>
> 2. What type of connector is on the mic?
>
> 3. What part of the mic are you touching when you get the shock??
>
> 4. You say you don't get a shock from the radio, is it possible you are
> touching a painted surface or some metal that is totally insulated from the
> radio itself?
>
> 5.  If you have an ohmmeter, check the continuity between the place on the
> mic where you get a shock and the ground lug on the radio.  Do this with the
> radio off and the mic connected.  In general, I would expect the case of the
> mic to be connected to the chassis of the radio.
>
> Please report back with your findings.  Together, we will figure this out.
>
> 73
>
> Howard #3, W A 9 Y B W
>
> ----- Original Message -----
> From: "Howard Kaufman" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, April 17, 2013 6:13 AM
> Subject: Re: mfj 931
>
>
>> Do you get a shock or a burn?  burns are RF, and feel much different than
>> 60
>> cycle or DC shocks.
>> Does the hum go away when you switch to a dummy load?
>> What about the shocks?
>> Is their chirp on your CW signal?
>
>
>