Actually, the K2 settings are quite stable. I would recommend using
this software to record the settings right after an alignment, then
remove the cable.
If the BFO settings are to be re-installed, know that the 4 MHz
Reference Oscillator may have drifted since the last alignment. If it
is set correctly again, then the same BFO frequencies can be entered.
Note that the BFO frequencies should be regarded as +/- 0.02 kHz because
of the BFO DAC resolution.
If you need information for accurately setting the 4 MHz Reference
(C22), look at my website www.w3fpr.com article on K2 Dial Calibration.
73,
Don W3FPR
On 3/9/2015 9:24 AM, Sverre Holm (LA3ZA) wrote:
Hi Don
Yes, you are right. So the software should only be used right before/after
adjustment and then the cable should be removed.
Indeed the K2/100 I just had here had the cable plugged in, but that was
not because of this software. I think it was just because the previous
owner didn't know better. I removed it before shipping it on to the present
owner.
73
Sverre
LA3ZA
2015-03-09 12:56 GMT+01:00 Don Wilhelm-4 [via Elecraft] <
[email protected]>:
With this software, there is an increased temptation to leave the
internal counter probe connected inside the K2.
While that is OK for the K2/10, for the K2/100 the probe should not be
left plugged in because it can couple BFO harmonics into the KPA100
resulting in spurious emissions.
Elecraft recommends that the internal counter probe be removed if the
KPA100 is installed. See the KPA100 manual page 55.
73,
Don W3FPR
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