[Heathkit] Signal on 28.635 MHz

[Jim Shorney]

Glen,

IMO, you're probably looking at a TV colorburst harmonic. Colorburst
crystals are used as the master oscillator in a surprising number of
devices. The 8th harmonic of 3.579545 MHz is 28.63636 MHz. If your
signal is real close to that frequency and doesn't vary, it may be
coming from a TV set or VCR. If it wanders around a bit, it is coming
from something else that uses a colorburst crystal.

73

Jim



On Mon, 3 Jan 2005 14:45:11 -0800 (PST), Glen Zook wrote:

>Last night I was checking a local's SSB signal on the
>10 meter band.  After we got through I started tuning
>around the band and ran across a steady carrier
>located approximately at 28.635 MHz.  Although there
>are numerous computer "spurs" around that frequency
>this particular signal is very different from the
>"normal" computer spurs.
>
>Anyway, I haven't put my 10 meter mobile in the car
>and gone looking for the source of the signal. 
>However, I am looking for suggestions as to just what
>this might be.  Frankly, over the years I have run
>into all sorts of signal sources.  But, none as
>"clean" as this particular source.


-- 
Jim Shorney      -->.<--Put complaints in this box
jshorney (at) inebraska.com
nu0c (at) amsat.org
Ham Radio NU0C
Lincoln, NE, USA
EN10ps
http://incolor.inetnebr.com/jshorney/