[time-nuts] BNC Question

[Chuck Harris]

Rick Karlquist wrote:

> FWIW:
>
> The guts of a BNC/TNC is very similar if not identical to a type N,
> which is good for at least 12.4 GHz.  The Agilent 13 GHz scopes
> have "precision" (IE tight fitting) BNC connectors on the probes.
> All of which of course doesn't mean the Asian BNC's you bought
> at the hamfest are any good.
>
> Rick N6RK

There is a very significant difference between the N and the BNC
construction with regards to what is the insulator in the transition
section between the male and female connector:  With the BNC (and TNC)
connector(s), the space is filled with an interdigitated plastic
dielectric.  With the N, the space is filled with air.

-Chuck Harris