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[CQ-Contest] Re: Which coax jumpers reduce SO2R interference

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Subject: [CQ-Contest] Re: Which coax jumpers reduce SO2R interference
From: "Jim Cain" <cainjim@mindspring.com>
Date: Wed, 2 Feb 2005 11:56:15 -0600
List-post: <mailto:cq-contest@contesting.com>
Bob, N5NJ, said:

>Make sure the connectors are tight too.  Yes, use a pair of pliers to "snug" 
>them up.  Be careful not to over-tighten them though.  It is possible to 
>tighten them too much >and break the connector.

>Regardless of where they are, make sure the connectors are tight.  You may 
>need to loosen and re-tighten them periodically to assure the quality of those 
>connections >over time.

These comments make sense if you are into RF.

20 years ago I got out of radio and got seriously into high-end analog audio 
(amassing more than 3,000 LPs in the process). If I had a dollar for every 
engineering-type who pooh-poohed my audio efforts, I could retire. The 
pooh-poohing stopped when they heard a string quartet appear, live, in my 
listening room. Audiophiles are into tweaks, and there even was a product 
called "Tweak." The deal was, not only did you ensure that your connectors were 
tight, you were instructed by the gurus to clean them regularly with chem-lab 
pure water (I scored a bottle from a local ham), then apply Tweak. One lunatic 
who wrote for The Absolute Sound swore by raising the cables, especially the 
speaker cables, off the floor. 

An important tweak -- which I never resorted to -- was to pull the mains power 
to everything in the house except the hi-fi, to avoid those nasty Fields. 

 Jim Cain, K1TN/9
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