On Fri, Mar 22, 2024 at 08:06 PM, Adrian Nicol wrote:

All that HPAK have to say is here:

They list both BW and VSWR as 'unknown'.
I read it as saying it was only ever intended for use at ~100MHz as part of the performance tests for the 54620 series 'scopes and perhaps some older ones?

Thanks for that info, I didn't find it when I was searching.
I know these terminations were specified for testing and adjustment of some other gear, like function gens etc.

I'll run some tests sometime soon for fun on my VNA and scope and see what the actual performance is.

I know they have a single through-hole type resistor inside that look similar to the Vishay RN series (I had to open one up to repair a broken solder joint when I bought it), so I don't expect performance to the GHz range...


I guess I should also try to find a couple BNC through terminations that are good for a few GHz now too....




Jared.