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Impedance "bump" Of An Elbow Connector


Kanalz, Karl
 

Elbows for "UHF" series connectors are not "constant impedance" (e.g., 50
ohms),
but then, neither are the connectors they attach to (the SO-239 and PL-258)!
They
are merely a convenience.

On the other hand, BNC connectors and their accessories (such as elbows)
were
originallyt designed to maintain a constant impedance through the
connector(s).

Karl K - W8TIF
McKinney, Texas

-----Original Message-----
From: Steve Howell [SMTP:AB8JC@...]
Sent: Friday, June 01, 2001 8:03 AM
To: FT817@...
Subject: [FT817] Re: No need to cut green wire or ream wider hole for
bnc connector

First, I hear bad things about impedences of elbows (yes, I know,
that can be true of any connector, but why add a *known* problem?).

Second, I don't like the mechanical stability with a (relatively)
long, heavy antenna such as the ATX. Especially as I will be
operating /PM backpacking w/20 to 30 kg, and sometimes I get a little
wobbly climbing over deadfall trees, boulders, etc. My dad had a
business repairing undergound coal-mining equipment & I learned to
over-engineer mechanical solutions from him.
<snip>