[Elecraft] BNC v TNC

[David Cutter]

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
>
>