[Elecraft] K2: Frequency Shift Between Transmit and Receive

[Linden, Mike (BRC-Hes)]

  The KAF2 manual states the following on page 11:

"The BPF has one interesting advantage over narrow crystal filters when used
in data modes.
If you use the BPF in combination with the wide filter (O P 1 ), there will
be zero frequency shift between transmit and receive."

  Is it "normal" to have a frequency shift between transmit and receive when
using the narrow filters?

  Thanks, Michael N9BDF


PS  The "Amateur Radio Emergency Communications Consistency Act" (HR 1478)
and the "Amateur Radio Spectrum Protection Act" (HR 713 & S. 537) have been
reintroduced in Congress. Please contact your Congressmen to ask for their
support of these bills! See the following ARRL link for details:
http://www.arrl.org/govrelations/