On Sun, 29 Jul 2007 14:34:27 EDT, PaulKB8N@aol.com wrote:
>He told me that those fittings have been very problematic for not
>maintaining a good ground connection,
Thanks for recounting your experience. It's input like this that
can save a lot of us a lot of trouble, and help others figure out
what's going on in another system.
One important correction. It is not the GROUND connection that was
problematic, it was the connection of the CABLE SHIELD. To be
effective, shielding must be CONTINUOUS, but there is NO
requirement for a connection to GROUND. Didja ever see a 747
trailing a GROUND wire? :)
Your last problem (the lockup after you changed channels) appears
to have been the result of nothing more than LEAKAGE TO the cable
system due to that bad connection. I'll bet that the bad connection
was also leaking trash TO your ham receiver!
To understand why the DXE #31 clamp-ons were not effective (they
are very good parts), study my tutorial on RFI. First study the
first couple of chapters, then make sure you read the section on
the Threshold Effect.
Jim Brown K9YC
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