[Elecraft] K2 XIT/RIT

G3SJJ g3sjj at btinternet.com
Wed Dec 6 08:02:40 EST 2006


David, thanks. I think I have sorted it all, at least on CW!  I have 
just re-aligned with the Spectrograph. The MP has on offset in the 
display I recall, so displayed is actual frequency, (I think!)

Now, simulating a QSO, ie transmitting on K2 and tuning in on MP, then 
txing on MP and listening on K2, I hear each signal without retuning, 
and as it happens both indicate the same freq. I am now convinced that I 
was transmitting 1 KHz lower before, which explains why I was calling 
VQ9JC on his tx freq even though I had XIT in, and wasn't being heard by 
NO2R who was listening co-channel.

Apologies to everyone for the numerous emails, thanks for all the 
advice. A learning curve!

Chris G3SJJ


David Pratt wrote:
> Chris -
> Do not be misled by the fact that on CW the K2 transmits on the 
> frequency as displayed, whereas many of the oriental black boxes 
> transmit a fixed number of Hz (maybe 600Hz) different to the displayed 
> frequency to give the required offset.
>
> I have encountered a similar problem with working black boxes on 
> 144MHz with my K2/KXV144 combination.
>
> I find that the best way is to call on the K2 and then tune the black 
> box for a suitable beat note. You'll find that the two displays will 
> differ by about 600Hz.
>
> 73 de David G4DMP/G3KEP
>
> In message <4576A69B.40103 at btinternet.com>, G3SJJ 
> <g3sjj at btinternet.com> writes
>> OK, I think I have sussed the problem. Now I need the solution, which 
>> I suspect is re-alignment.
>>
>> - K2 tuned to 3500, FT1000MP tuned to 3500.
>> - Transmit on K2 and hear signal on FT1kMP, within 40Hz.
>> - Transmit on MP
>> - Nothing heard on K2
>> - Tune around and signal audible on 3498.90   --- 1100Hz low
>>
>> Suspect I have the BFO on the wrong side.  Back to the drawing board!
>>
>> Chris G3SJJ
>
>
>


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