[Elecraft] K3 bad TX

[David Gilbert]

Ahhh ... I didn't think of that.  Thanks for the clarification!

73,
Dave   AB7E



m.j.willis at rl.ac.uk wrote:
> I think he means the K3 amp issue - the amp in the K3.
>
>
> <quote author='David Gilbert'>
>
> I don't understand ... if you used two different K3's and the same amp 
> (I assume for both K3's), how does that remove the amp as a possible 
> cause of the spurs?  I don't think you narrow anything down to the K3 
> until you check the results into a dummy load.  If you have two K3's, 
> transmit into a dummy load with one while you check for spurs with the 
> other.
>
> 73,
> Dave   AB7E
>
>
>
> Toni Lindén wrote:
>   
>> I was using SO2R with pair of K3s' and had similar reports with both
>> radios, so I guess it's not the amp issue. The bands where I got
>> reports were 20M and 15M (on 10M were no propagation and maybe 40M and
>> 80M were too noisy to notice the 2nd sigs).
>>
>> All antennas are OK and no difference was noted with antennas.
>>
>> 73 de Toni, OH2UA
>>
>>
>>   
>>     
>>> Tke the amp out of the equation and see if you still have the issue. Try
>>> a
>>> different antenna and check the SWR. I would suspect one of those to be
>>> the
>>> issue. At least it will eliminate some variables.
>>>
>>> Dan AB3EN
>>>
>>>     
>>>       
>> Toni Lindén wrote:
>>   
>>     
>>> Hi!
>>>
>>> I was trying K3 for first time in SAC contest a couple of weeks ago.
>>>
>>> During the contest I got multiple reports that besides of my run
>>> frequency, I also had other reasonable strong signals "around the
>>> band".
>>>
>>> It cleared out that I had at least one other signal about 7kHz away
>>> from my actual freq. It was quite strong, maybe 40dBs down from my
>>> running freq.
>>>
>>> Have anyone else had similar problems and do you have any suggestion
>>> how to fix this?
>>>
>>> I was using only about 60 to 70 watts drive for the amp and amp was
>>> not pushed over. The same appears on both, CW and SSB. Radio has the
>>> most resent FWs available via K3 utility SW.
>>>
>>> I'm planning to take K3 with me to CU2 for CQWW, but after getting
>>> such a bad reports about "my 2nd pileup" on the same band, I'm not
>>> sure if I'm willing to make such an interference to others on CQWW...
>>>
>>> So if anyone has any advice, I'm more than pleased to hear!
>>>
>>>
>>> 73 de Toni, OH2UA
>>>     
>>>       
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>>     
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> </quote>
> Quoted from:  http://n2.nabble.com/K3-bad-TX-tp3763903p3764377.html
>
>