[time-nuts] 10811 changing frequency when load impedance changes ?
Mark Spencer
mspencer12345 at yahoo.ca
Sat Dec 25 05:54:13 UTC 2010
Seasons greetings.
I was pleasantly surprised to find that a new to me HP 5328A had an 10811 in
it. (I was expecting the older OCXO..) After leaving it running for a
week I adjusted the frequency and while doing so I noticed that the out put
frequency changes by a third of a hz or so if I add or remove a 50 ohm load.
I'm measuring the frequency at the timebase output connection of the
5328A. Is this to be expected ?
Many thanks
Mark Spencer
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