[time-nuts] Best counter setting for ADEV?

[Timeok]

correction: HP53132A


timeok

Il 2012-10-02 13:29 Timeok ha scritto:
> test using HP53123A:
> The pink line is the noise floor using the TI mode
> The blue line is the noise floor using the Frequency mode (gate 2 
> sec)
> The other two line are the same oscillator, an HP105B tested with
> both the modes.
> As you can see the range between 1 and 200 sec is "totally
> compromised" by the system noise floor using the TI method.
> The approximation using the freq mode can be anyway usefull to make a
> comparatinon between two source.
> I suppose to have right measurements, without any restriction we have
> to use the Timepod or other high level instruments than this kind of
> counters.
>
> Luciano

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