Yes, that's good with RC
Only niggle is 20000000 Hz faults, can get around 18999999

Fatal error: Failed to start channel data capture: 14

but not with all 9s. And at those high values, 50 samples starts to fault at end with
too long to download data - or some such fault.

Yes, that fixes the problem It runs and gets a plot.
I just have to get a sensible one.

Hi Aaron,
you are right that my 'scope has a 20MHz band limiter tick-box

It also has low pass filtering settable to a particular frequency if that helps in the scheme of things.

'tis I who thanks you - a handy looking little tool you're working on!

OK, Aaron, that part works but now I get:

Fatal error: Failed to setup input channel: 269
Status: 6402 S/N: AQ552/011 successfully initialized.

Gary

Sorry, Aaron, I was a bit lax about getting back to look. Thought I read that replies would be emailed but no. Anyway, I'm about to try the new build you've just linked to. It has no a/b/c/d after the model number that I can find. It is repeatable as I tried it many times. Rebooted windows; opened '...

I have downloaded windows installer 0.5b
Plug in scope: 6402
start FRA and get
"Error: Unable to initialize device with serial number AQ552/011"

???

Gary