The KX2 was right there - staring at me. What could I do?
I put it online and VP6D sounded "workable" but not much better than that. I didn't think my chances were great but decided to try anyway. Enabling the APF function did two things - it made VP6D pop out of the noise significantly and it added a third digit to the KX2's display and tuning resolution.
Then I enabled Split, found the last station worked with VFO-B, went back to RX on VFO-A and called. Then called once more and Boom - in the log.
After that, I disabled Split. APF was still enabled, but only on VFO-A with three digits (ie, down to the single digit Hz) showing. I toggled to VFO-B, where APF was not enabled, and had three digits there as well.
Long story short, if you want greater tuning resolution on your KX2, enable APF on one VFO and then go to the other VFO for non-APF operation with the 3-digits-to-the-right-of-the-decimal resolution:
|This is the normal state of the KX2 in CW mode. Display only shows resolution to the 10's of Hz, ie, two digits to the right of the decimal.|
|Activating APF (long press of FIL button) causes display to now show single-digit Hz resolution. Active VFO is in APF mode.|
|Pressing the A/B switch makes VFO-B the active VFO with the same 3-digit resolution but with APF not enabled. This allows more accurate and slower tuning without the effect of APF.|