[time-nuts] OT: Power level reference
Mike S
mikes at flatsurface.com
Wed Dec 2 01:00:58 UTC 2009
At 07:00 PM 12/1/2009, J. Forster wrote...
>Scopes tend to have non-flat frequency response. I'd consider a
>precision
>load and something like an HP 3400A True RMS meter for up to a hunderd
>MHz
>or so.
You have to know your equipment. I have a Tek 485 350 MHz analog scope,
so I'm confident it's flat into VHF (at least beyond 100 MHz). I've
verified it exceeds the 350 MHz spec (i.e. < 3 db down @ 350 MHz) with
a tunnel diode pulser.
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