[Elecraft] K2 Power meter

[Don Wilhelm]

Tom,

That is exactly what I said.  In CALP, if the load is anything other 
than 50+j0, the power indication will be incorrect.  In other words, the 
requested power may not equal the actual power.

When you go to AUTO and do a TUNE, the forward power should be close to 
the requested power.

73,
Don W3FPR

Tom Campie wrote:
> I calibrated the tuner to a 50 ohm load on CALP.  With the tuner tuned  
> to a non-50 Ohm load, the requested power does not match the output  
> power by any definition of the word.
>
> Tom
>
> On Jul 19, 2009, at 9:48 PM, Don Wilhelm wrote:
>
>   
>> Tom,
>>
>> No adjustment is required.  In CALP state, the tuner must be working  
>> into a 50 ohm load for accurate power readings.  If you are  
>> connected to an antenna that has a feedpoint impedance other than  
>> 50+j0 impedance, you can expect "unexpected" results.
>> When you change the ATU menu to Auto and do a TUNE, the tuner has  
>> done its job of providing a 50 ohm match to the K2 and the power out  
>> will be as requested.
>>
>> 73,
>> Don W3FPR
>>
>> Tom Campie wrote:
>>     
>>> This has been beaten over and over I think but I haven't found   
>>> anything on it yet:
>>>
>>> I just got back from the lab at work and used a very well  
>>> calibrated  power meter to calibrate my KAT2 power meter.  Now on  
>>> 40m at home, I  set my power control to 5w and tuner to Pout.  The  
>>> tuner now reads  2.9w.  Not until I tune the requested power to 8  
>>> watts or so does the  tuner say I'm putting out 5 watts.  Isn't  
>>> there a way to adjust it so  that the requested power matches the  
>>> tuner output power so that the S/ Power meter reads the right  
>>> value?  That's the most annoying part...
>>>
>>> Tom
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