[Elecraft] Mic Noise

Buck radiok4ia at gmail.com
Sat Mar 16 16:24:46 EDT 2019


Thanks.  I was using a Heil Goldline and also tried an Elecraft MH4 
plugged in the front.  I get the same noise on FP.L and FP.H  Bias is 
off.  And, I still get the noise even when in TEST mode, so there is no 
RF.

I had the Tx Dly on the K3S set to 8.  I set it to 15 and the problem 
went away.  Was I hitting the amp too soon?  Amp is a KPA500.

Now the problem is back, even with the Tx Dly set to 20.


k4ia, Buck
K3# 101
Honor Roll  8B DXCC
EasyWayHamBooks.com

On 3/16/2019 3:41 PM, Don Wilhelm wrote:
> Buck,
> 
> Which transceiver and which microphone?
> If the K3, are you using the front panel mic jack or the jack in the back?
> How do you have MIC SEL set?
> 
> 73,
> Don W3FPR
> 
> On 3/16/2019 2:57 PM, Buck wrote:
>> I never use a microphone so here I am today trying to run voice in the 
>> Va QSO party.
>>
>> When I key the mic, I get a burst of noise that lasts maybe a half 
>> second.  It does this even if I have the rig in "test" mode ie. no 
>> transmit.  So, I don't think it is RF.
>>


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