[Milsurplus] question - on BNC RF connectors

[Mike Feher]

I am not sure about that. N connectors definitely have different diameter
male and female sections and are not interchangeable without either damage,
or, an open circuit. However, from what I recall, BNCs are interchangeable
as the only difference between the two is the dielectric loading within the
connector. At low frequencies, the only problem if they do mate would be a
1.5 to 1 impedance mismatch jump, not a big deal for most applications.
Regards - Mike 

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960 


-----Original Message-----
From: milsurplus-bounces at mailman.qth.net
[mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of J. Forster
Sent: Saturday, August 31, 2013 10:02 AM
To: John Hutchins
Cc: Milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] question - on BNC RF connectors

The real 50 and 75 Ohm BNCs do NOT intermate w/o damage. The center
connector pin is different.

You should use what the generator has.

-John

================


> Group -
> Have generators that are 50ohm  and 75ohm outputs respectively. Making 
> blocking capacitor modules; and RMA ant simulator module to be used 
> between the two different generators.  Do I use 50 Ohm BNC or 75 Ohm 
> BNC connectors? Or does it really matter.
> Thanks
> Hutch
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