[Lowfer] Poor man's mw/lw wideband noise reduction

PAUL DAULTON k5wms at aristotle.net
Sat Jan 10 11:23:47 EST 2009


I found an article in Elektor magazine feb 2005, which can be downloaded
 from Elektors's site, about
a noise reduction method.
Basically two receivers are used.The loudspeaker outputs of the two radios
 are connected in phase while 
the speaker in the second rec is disconnected. With the second receiver
 tuned a little higher or lower than
the main one the speaker of the main receiver is fed with the difference
 between the two signals. External
antennas should be connected in parallel. Using the volume adjustment on
 the second radio a setting can be 
found that should result in a reduction of noise.
Sounds good I am trying to figure out how to apply to Argo connections.
Any comments?
Paul K5wms
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