[Elecraft] K2 Alignment and Test part 2 question

[Don Wilhelm]

Kevin,

I assume you are referring to the 4 MHz oscillator calibration.  If so, 
please understand that the optimum frequency for that reference 
oscillator may be slightly different than exactly 4 MHz.  It can be 
refined later.
The K2 does not use that reference on a real time basis for the 
frequency readout.  It only has to be accurate when running the CAL PLL 
and CAL FIL procedures.

At this point of your alignment and calibration, just set the C22 MHz 
trimmer to mid-range.  Don't worry about it until you have completed the 
K2 construction and are ready for the final frequency calibration.
Then go to my webpage www.w3fpr.com article on K2 frequency calibration 
and follow the procedure given there.  That should result in not only 
good frequency calibration of the K3 as well as properly aligned K2 filters.

73,
Don W3FPR

On 4/21/2015 7:45 PM, Kevin Hulina wrote:
> For this alignment section, it mentions using a "calibrated external 
> frequency counter", or a ham/sw receiver, or later using WWV on-air.  
> Since I don't have a "calibrated external frequency counter" at home, 
> what are many people doing for this portion of the alignment and testing?
>