[Elecraft] K2: calibration again?

[W3FPR - Don Wilhelm]

Eric,

Once the proper values are written into the EEPROM by the CAL PLL and CAL
FIL processes, they should remain stable unless the PLL reference oscillator
frequency changes substantially (similarly the BFO Frequency).

The most important thing to assure accuracy is to carefully set the K2
reference oscillator shortly before doing CAL PLL and CAL FIL.  Once these
proceses run, the reference oscillator can drift all it wants to and will
not affect the K2 calibration (because it is not used in normal operation
for calibration purposes).

If you want to do a really 'super' job of setting the K2 reference
oscillator, take a look at my website http://w3fpr.qrpradio.com or the
mirror at http://home.earthlink.net/~w3fpr or the mirror at
www.qsl.net/w3fpr - the K2 Dial Calibration article should give you several
methods of setting the reference accurately, and step 3 (CAL FIL) provides
good information and links to additional information about setting the
filters.

73,
Don W3FPR

> -----Original Message-----
>
> This is not an question about my rig, it's more like a wondering...
>
> I have made two automatic calibrations on my K2. The first one early in
> the building-process and the second was the VCO linerization.
>
> Are these processes "run once" and not possible to run again?
> Or is there a way to make a factory reset of all parameters?
>
> I don't know when I want to run them again, but I very much like to know
> how things work.
>
> Tnx
> SM0RVV ./Erik
> K1 #1978
> K2 #4904 (soon on air)
>
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.338 / Virus Database: 267.9.7/60 - Release Date: 7/28/2005