Hi Said,
I have bought the HP53132A from HP several years ago when WWW and ebay
was not invented! hi!
I agree with you about the wavecrest
luciano
Il 2012-10-02 14:40 Said Jackson ha scritto:
Luciano,
For TI mode, I have recommended the Wavecrest DTS time interval
counters here in the past.
Can be 1/2 price of an HP 53132A ($600 or so) on ebay, has 800
femtoseconds resolution, and around 3ps SD typically. Goes to 800Mhz
or twice that depending on model. That blows the 53132A out of the
water.
Useless in frequency mode though, one must calculate frequency by
fast time interval measurement on the 10MHz for example using Stable
32 etc.
Heavy, large, and power hungry, but quite solid.
Said
On Oct 2, 2012, at 4:29, Timeok <[email protected]> wrote:
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
<TIvs Freq mode1.jpg>
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