Hi Fred
I wonder if you have come across counterfeit TNC connectors. I would guess
that since these are not used in the mass computer industry then there is
less incentive for the counterfeiters to be interested. The BNC is most
interesting because it's so easy to connect and disconnect, but for me it's
a size issue and I prefer the *improved* water resistance of the TNC. I
left a mated pair out in a heavy downpour recently and found no water
ingress. If I were doing it properly I would apply a little Vaseline
petroleum jelly on the thread.
David
G3UNA
Without sounding my horn too loudly I have servered on IEEE connector
committees and been paid big bucks to solve the production line problems.
Counterfet connectors is too mild a term. There is some real crap out
there and your eyeballs won't be able to detect it. Things like finish and
and spring tention problems can not be seen. I recall one particular
connector that was causing a 2db measured loss over a prefered Kings or
Amphenol connector. The imported brand X connector was available in both
50 and 75 ohm versions, both of which were unmarked. When actually
measured with a TDR they both measured 62 ohms.
Folks, life is too short to mess with S T U F F like this. Do you really
have to touch the wet paint or believe the sign.
73, Fred, AE6QL
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
