Hi Bob,
On 11/05/2012 01:30 PM, Bob Camp wrote:
Hi
As a practical example - a SR620 will look much better reading it's own
reference than it will looking at almost anything else. That said, it's still a
good idea to make sure the counter looks good reading it's own reference. If it
doesn't look good, then you need to fix something.
I agree that this is a good self-test strategy, it usually gives a good
clue if something is really bad or not, but as I pointed out, it doesn't
give a fair idea of the measurement noise floor.
Cheers,
Magnus
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