[Elecraft] K3 APF FINE Tuning

[wb6rse1 at mac.com]

I spoke too quickly. Wayne is referring to changing the AFP freq. I was referring to tuning the RX. Tuning one or both is aimed at getting the desired signal to the peak. .001 is very useful for really weak sigs. Having the shift control move the APF 5 hz vs 10 hz would also help in combination.

73 - Steve WB6RSE

On Nov 3, 2010, at 7:59 PM, Ron D'Eau Claire wrote:

I'm not clear on the value of changing the APF center frequency
independently of the actual signal center frequency. If the other station
drifts off-frequency, I just tune him back in with the RIT or, since I use
SPLIT as my basic operating mode, with the VFO knob. 

In what circumstances if tuning the APF frequency useful?