4 May
2021
4 May
'21
6:38 a.m.
On May 4, 2021, at 1:50 AM, Doug Jackson <doug at
doughq.com> wrote:
HI Paul,
"I don't know what "HD BNC" means. There's only one BNC"
Years ago when working in a university with Photomultiplier tubes, we used HV BNC
connectors - these looked like standard BNC, but were rated at 10kv.
https://www.radiall.com/products/rf-coaxial-connectors/high-voltage-connect…
Those are MHV connectors, not BNC, the description makes that clear.
We also used to use 75 Ohm BNC connectors for video
systems.
Sure. Those are the same shape and size as regular BNC connectors; the difference is in
the insulation to produce a 75 ohm characteristic impedance.
It is worth noting that there are multiple BNC
connectors.
Yes, I see your point. What I meant is that "BNC" refers to a given shape and
size. As for the "HD BNC", that's news to me but it seems to be merely a
standard BNC connector with slightly tweaked tolerances or materials to be rated to a
higher top frequency. For the application we're talking about here, the frequency
rating of an ordinary BNC connector is way better than what's needed.
paul