[Elecraft] K2 Alignment and Test, Part II results with missing resistor

[Don Wilhelm]

Bob,

Those 2 resistors are not likely to change any of the alignments 
significantly, but do swap them because they could change the stability 
of the VFO.

With respect to the 4 MHz Reference alignment, I would encourage you to 
re-do that anyway after the K2 is complete.  Your attempts to set it at 
exactly 4 MHz, while good, do not assure you of accurate dial 
calibration.  After you have everything together and working, I 
encourage you to do the steps in the K2 Dial Calibration article on my 
website www.w3fpr.com.  You will not need an external frequency counter 
at all, but you will want to use Spectrogram or some other audio 
spectrum analyzer to get it "just right" and align your filters as well 
(an important part of the overall process).  The settings in the manual 
will get your filters 'in the ballpark', but they do need to be 
refined.  Wait until you have the KSB2 and the K160RX and the K60XV 
options installed if indeed you will be installing those options.

73,
Don W3FPR

Bob G. wrote:
> After successfully completing Part II of the receiver alignment and test I
> look back and see where I skipped R29 (10k) on the RF board bottom side.  I
> installed R29's resistor at R19 instead.  So R29 was empty and R19 held a
> 10k instead of 2.7k.  Your most excellent method of orienting the resistors
> in a strip raised the red flag for me when I started installing resistors
> again.  So much for my careful review and inspection.  The Part II alignment
> came out excellent.  Do these two errors affect the alignment results such
> that I need to go back and do the session over again?  I hope it did not
> affect the 4 MHz Oscillator Calibration - I worked hard to find and use an
> external counter and hope not to re-do it.  Thanks for any thoughts.
>
> Bob Gordon
> KE5WZK
> K2 S/N 6667
>   
>