[Lowfer] KFI Captures and stability of AM Stations

[Les Rayburn]

I notice that many other captures of KFI from Lowfer List members show a lot
of
frequency drift over time from carriers on 640khz. (Though KFI's signal
with it's unique "square wave" pattern still stands out from the crowd)

I'm still puzzled by the frequency drift observed however. My own captures
of
this channel reveal very little drift at all from these stations, though I'm
looking at them
in 20 Second mode.

It also appears that some on the list are using less than optimum receivers
for this
type of work. My Icom 746 is equipped with the high stability oscillator and
is
never turned off.

I would assume that Clint Turner is using something equally (or likely far
more) stable, so
again, I'm puzzled. Can all this be explained by the additional drift
observed by integration
over an additional 10 seconds of time?

73,

Les Rayburn, N1LF

Les Rayburn, director
High Noon Film
100 Centerview Drive
Suite 111
Birmingham, AL 35216
(205) 824-8930
(205) 824-8960 FAX
(205) 253-4867 CELL
http://www.highnoonfilm.com