[Elecraft] K2: Frequency Shift Between Transmit and Receive

Fri Feb 13 11:11:04 2004

On the K2 if you properly align your filters with something like the
Spectrograph you should be really really close.  But yes any filter will
create a variation.  An easy way to check how well you have aligned your
filters for CW is to tune in a station and then step thru the filters.  =
If
there is no tonal change in the received signal, you did a good job.

Gregg R. Lengling, W9DHI, Retired
Administrator http://www.milwaukeehdtv.org
K2/100 S#3075 KX1 S# 57
Politics is the art of appearing candid and completely open, while
concealing as much as possible.   -States: The Bene Gesserit View
=20

-----Original Message-----
From: [email protected] =
[mailto:[email protected]]
On Behalf Of Linden, Mike (BRC-Hes)
Sent: Friday, February 13, 2004 3:58 PM
To: [email protected]
Subject: [Elecraft] K2: Frequency Shift Between Transmit and Receive

  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/

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