"Honus" wrote in message
...
[snip]
I'm new to the hobby, so please bear with me.
I picked up a Gene Scott broadcast last night on MW at 1615 KHz. Here's
the
info I found at his website:
http://www.drgenescott.com/swave.htm
THE CARIBBEAN BEACON
Anguilla, British West Indies
24 hours a day - 7 days a week
690 KHz AM
1610 KHz AM
I'm listening in Seattle, and I really don't think that I've DX'd the guy
all the way from the Caribbean. The signal isn't constant; it eventually
faded out just
like SW reception does. So my question is, just how did I hear this
broadcast?
Looks like a spurious response caused by your oscillator's third harmonic
and the radio's poor RF selectivity.
Assuming an IF frequency of 455 kHz, when the radio is tuned to 1615 the
local oscillator is running at 2070 kHz (1615 + 455).
The third harmonic of 2070 kHz is 6210 kHz.
With an IF of 455 kHz and an oscillator frequency of 6210 kHz, there will be
a response at both 6665 kHz (6210 + 455) and 5755 kHz (6210 - 455).
KAIJ carries Dr. Scott on 5755.
http://www.drgenescott.com/swave.htm
Scott uses satellites, but I imagine they're geo-synchronous and
so (I assume) the signal wouldn't fade. Is that true? Is retransmitting of
MW or FM band signals ever even done in the first place? And why did I
receive the signal at 1615 instead of 1610? Did I pick up a repeater of
some
sort? I have more questions, but I think that from the ones I've just
posed
that everyone can imagine what they are. Thanks in advance for your
replies.
You might try checking your radio's local oscillator output with another
radio. I'll bet it puts out a receivable signal at 6210 kHz as you tune
around 1615 kHz.
FWIW I'm using a Grundig S350, grounded, with a 75' random wire antenna.
And for rec.radio.shortwave, does anybody know of a URL that explains the
process by which SW trasmissions are rebroadcast via satellite? Obviously,
I've got more to learn about this. 
Oh, and by the way...it's 0525 UTC and -someone- is back on that frequency
again. (I tried reception during the day, but got nothing.) I haven't yet
heard anything to indicate who it is, but I'm sure it's Scott.
What was he talking about? The Pyramids? Aliens? Demons?
Was he yelling at the hired hands again?
Frank Dresser