Re: 475 Sweep question

donald collie
 

Thankyou gentlemen, that`s exactly what I wanted to know.
Cheers.......................................................................................................................................Don.

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On Fri, Jan 26, 2018 at 6:04 AM, Roger Evans via Groups.Io <
very_fuzzy_logic=yahoo.com@groups.io> wrote:

The acid test is that you should always be able to see the leading edge of
whatever triggers the sweep. This does mean you need a test signal with a
rise time of less than a few nsec to be completely unambiguous. I had a
look at my 485 which has the benefit of a 1nsec rise time 1MHz calibrator
and the start of the sweep moves a couple of divisions to the right going
frpm 100nsec/div to 10nsec/div but the leading edge is always visible.

Roger



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