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Old April 28th 06, 04:11 PM posted to rec.radio.shortwave
bpnjensen
 
Posts: n/a
Default Transmitter splatter

What can be done to remove this splatter? Very little I am afraid. One of
the only possibilities is to "phase" out the splatter with a device
such as
the MFJ 1025/6, but these devices also have severe limitations and will
not
work in every circumstance. Despite the glowing reports of some users
with
these phaser's, they will only work if the station you want to phase
out is
not too strong and also that the offending transmitter is at right
angles to
the transmitter you are trying to receive.

John , I agree with you on the splatter - it is a difficult problem
that requires extraordinary measures, and I have a couple of Local SF
Bay Area, California, stations that do exactly this - but the MFJ-1026
in many cases actually can take a strong station and almost null it so
that a weaker station behind it can be read as the louder of the two
stations. I don't think "right angles" is the key on this device - I
*think* the device internally performs a phase interference operation
on the offending signal, just as it would on a noise source, and nulls
it that way. I do know that a noise source to be nulled does not need
to be at right angles to the desired signal.

Bruce Jensen