[Elecraft] Strong Rd feedback in mh3

[Wayne Burdick]

Also try a QRP balun at the radio, such as our BL1 or BL2.

73,
Wayne
N6KR


On May 28, 2016, at 8:43 PM, Don Wilhelm <donwilh at embarqmail.com> wrote:

> Ed,
> 
> Yes, that can be common with long wire antennas - that can happen with any transceiver, it is not unique to the K3 or KX3.
> 
> Change the length of your long wire by 1/8 wavelength at the frequency you are having trouble with.
> 
> The situation is that you have a high RF voltage on that antenna near the shack end.
> Even though the tuner can match it, it can produce a strong RF Field in the shack.
> 
> 73,
> Don W3FPR
> 
> On 5/28/2016 11:17 PM, Edouard Lafargue wrote:
>> I was operating portable today, with a long wire in a tree  and
>> counterpoise on the ground, and no matter what I did, every time I pushed
>> the mic button, I got super strong RF feedback in audio monitoring,
>> apparently picked up by the MH3 cable - things got slightly better if I
>> tried to bunch/coil the MH3 cable. Is this common?
>> 
>> I only managed to work one station in Indiana in the time I tried, most of
>> the time what I heard in my headphones while transmitting was
>> unintelligible garble, so it is no surprise others didn't hear me, I
>> guess...
>> 
>> My KX3 has got an internal ATU and it managed to match the long wire
>> perfectly at each frequency I tried to operate...
>> 
>> 
> 
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