[time-nuts] Wavecrest
SAIDJACK at aol.com
SAIDJACK at aol.com
Sat Jul 14 08:12:59 UTC 2007
Hi Mike,
some more usage tips:
* The inputs are limited to about +-1.1V. So a good RF DC-blocker and
attenuators really help. Be carefull, it's easy to exceed the input range.
* You need to equal length SMA cables, and a bunch of SMA short circuit
caps to calibrate the unit. Some special calibrations can only be started via
GPIB command.
* The unit takes about 600W or so, I always blow our fuse...
* Measuring the time-base 100MHz output in the back of the unit will
typically give 3ps or less RMS jitter readings if everything is working well, the
unit is warmed up and well calibrated.
* Square Waves give better results than sine waves, but not by much.
bye,
Said
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