[Elecraft] K2 #6950 - Alignment 2, VCO and BFO issues

Steve KC8QVO kc8qvo at yahoo.com
Sun May 30 13:35:52 EDT 2010


I went through the trouble shooting list here in the back of the manual and
found my VCO output (pin 3 of U3) to fluctuate between .08-1.33v. Also, the
BFO output (pin 6 of U11) shows .136-.2v. Both measurements were done with a
DMM and the probe kit. 

Any ideas? 

With Alignment II my PLL Reference high freq is 12003.17 and the low freq is
11990.48, range = 12.69. The BFO freqs are: high=4916.87, low=4912.16,
range=2.71. 

Another quick question about adjusting C22 using another radio - I turned
C22 both directions and found it would peak the sidetone frequency/intensity
heard on the radio at one point and either direction beyond that the tone
and volume dropped off. I went counter clockwise, using headphones, until I
couldn't hear any tone and bounced between LSB and USB to make sure I
couldn't hear anything (low freq rumble) in either mode. Did I do this
correctly?  

Steve, KC8QVO
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