"Ian White, G3SEK" wrote in message ...
Tom Bruhns wrote:
....(someone wrote:
There's a mechanical switch on the slide-rule tuning mechanism.)

Presumably it's a bit different in mine, since there is no slide-rule
tuning mechanism.

Beg your pardon - only the A model has the slide-rule dial, but the
filter switch is probably the same.

Well, unless you consider a Schmitt trigger to be a mechanical switch,
mine's not the same...


....

My fun these days is in finding ways
to make meaningful measurements 120dB below full scale with data from
a 12-bit or 14-bit ADC. :-)

Yeah, g'luck with that...

Works well if the ADC is linear enough and you have enough processing
gain. Maybe some day not too far down the road we'll have 20 bit and
24 bit 100Ms/s ADCs, but they're a bit rare right now.

Cheers,
Tom