[Elecraft] K3 250Hz Filter gain maxed yet low

Jim Miller jim at jtmiller.com
Sat Dec 27 18:27:45 EST 2008


Followup:

I followed the directions given by Bill, W4ZV, and noticed my 250hz
filter wasn't centered well. In fact the response increased by 1.4dB
as I moved up frequency 30hz or so.

I then recalled that I didn't really get comfortable with the REF CAL
results when I first (impatiently) turned on my rig. I redid the REF
CAL using WWV @ 10Mhz and moved it quite a bit and now get a very nice
zero beat per the instructions.

Now the 250hz filter centers perfectly and @8db of GN matches the
400hz filter "goodnuff".

Thanks to all!

jim ab3cv


More information about the Elecraft mailing list