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7-6 Sweep
The marker output is a TTL-compatible output. It is
high at the start of each interval, and when the marker
frequency is reached it goes low, where it remains until
the end of the interval.
50 individually-programmmed intervals may
be used in a customized sweep-sequence of upto 100
intervals. Any of the intervals may be used more than
once, and the intervals can be programmed in any
order (not necessarily the one in which they were
programmed). Between each interval in the sequence
there is a frequency switching time, depending on the
frequency step involved:
n
An example of a sequence can be shown using the three
intervals mentioned earlier in the section. You can
program a sequence so that, for example, interval 2, is
followed by interval 3, and then comes interval 1. The
following will then be output:
I n t e r v a l
3
I n t e r v a l
I
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