About 50 years ago I ran into a Frequency Division Multiplexer that used a
redundant master frequency system. I beleive they combined the same frequency
for the master oscillator, but it was something like a special hybrid
combiner. I remember that they used a phase angle of 135 degrees -
Has anyone found a suitable replacement or a source for the fan/blower in the
HP53131A ? I have talked to Agilent and the fan/blower is not a seperate item,
its part of the power supply board.
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In the back of my head, I beleive that project red shift did fly, but they
dumped the hydrogen masers to use brand new lighter weight and much smaller
rubidiums.
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Greetings,
I have run some time interval test and it did not quite calculate correctly. I
used a TADD2 that is configured for 2 outputs at 100 Hz, 2 outputs at 10 Hz,
and two outputs at 1 PPS. The HP5370B clock output was used as the input for
the TADD2. The output of the TADD2 was feed to
