[Elecraft] used K2 Alignment

[Don Wilhelm]

Jacob,

You can do the alignment just fine.  If it is mostly dial calibration 
and filter alignment that concern you, take a look at the K2 Dial 
Calibration article on my website www.w3fpr.com - that article also 
covers the filter alignment.  If you do not have Spectrogram or some 
other audio spectrum analyzer, download it and use it to give you the 
easiest method of determining your actual filter width, shape and its 
positioning in the IF passband.

If the pitch shift continues after the filter alignment, then there may 
be something stuck in the EEPROM - clearing it may require a Master 
Reset - but before you do that, download the A to B upgrade instructions 
from the Elecraft website because it contains a nice set of labeled 
blanks where you can record your menu settings.  Record ALL the menu 
settings before doing the Master Reset and restore them afterward.  The 
reset puts your filters and everything else back to the defaults.

If you want to do a complete alignment of that K2, you may want to 
download the extract of the K2 manual that I have on my website too - it 
is the Rev E manual with the assembly steps removed leaving the 
alignment information intact.  Note that the manual instructions will 
give you workable filters, but they are not optimized - use the 
instructions in the Dial Calibration article to optimize the filters.

73,
Don W3FPR

On 11/15/2011 2:13 PM, jacob chambers wrote:
> Hello;
>
> While I am generally thrilled with my new K2 (not built by me) I feel she is in need of an alignment touch-up. The rig used to have all the bells and whistles but now is CW only with no tuner, SSB, etc. It is pretty much on with alignment but not exactly. The one thing that definately bothers me is one filter width - 700hz - causes the received signal to change in pitch. The other settings leave it unchanged. Also, I'm never on a "cardinal" freq when I work people - and I'm sure some of them are on whole frequencies - like 7.030.0 or 14.050.5. I'd like to get this thing closer. How best to proceed?
>
> I'm looking in the manual but I'm now a little afraid. I have ordered the 2 required probe kits for alignment but do not have the serial interface. Any ideas on how long this process will take and whether or not a neophyte should worry about rendering the rig useless?
>