[Elecraft] [K3] K3 3.04 Power Output After Tune

[Nick Lekic]

Same problem here Bill

Low power output (40watts - 60watts) after using the tuner.  CW produces 
full output.

73,  Nick
ve3ey


On 3/28/2009 10:03 AM, Bill Coleman wrote:
> Augie Hansen wrote:
>    
>> Dave G4AON wrote:
>>
>>      
>>> I assume by "after I tune" you mean pressing the XMIT/TUNE button to
>>> create a CW carrier at some level between 20 Watts and 100 Watts. I've
>>> tried various combinations of power and both the actual measured output
>>> and the indicated output on the K3 are both fine. No problem here at all.
>>>
>>>        
>> My K3 has a KAT3 installed. When operating split on 40 meters it is
>> necessary to tune one of my TX antennas. Following the successful tune
>> operation (1:1 match) an attempt to call results in very low (<2 watts)
>> output power. Neither talking nor whistling causes the power to return
>> to 100 watts. I have to swap VFOs, switch to CW and key the rig to get
>> the power back to the requested value. Then, of course, return to LSB
>> mode, swap VFOs back so that I'm transmitting on the correct frequency.
>>
>> Based on Jim's description I believe he is having the same problem.
>>
>> Gus Hansen
>> KB0YH
>>
>>
>>
>>      
> I see a power cutback after KAT3 tune also - not as dramatic as Gus
> describes.    Not using SPLIT.
>
> Using the 2TONE test signal on SSB yields ~100W, tune the KAT3 and 2TONE
> test again yields ~65W.  Change to CW, tap the key, back to SSB and I
> get ~100W.   All this into a dummy load&  on any band.
>
> Other observations:
> If you tune the KAT3 then bypass the KAT3 it still only outputs ~65W.  I
> also tried various settings of TUN PWR (10, 2,&  NOR), all acted the same.
>
> Works OK on FW2.82,  'fails' on FW3.03 and FW3.04
>
> 73, Bill  N2BC
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