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T H
Threshold
Item
The TH command blanks signal responses below the threshold level, similar to a base line clipper. The threshold
level is nine major divisions below the reference level, unless otherwise specified. The Up and DN commands
move the threshold 10 dB.
The threshold level is annotated in reference level units at the lower left-hand side of the CRT display. (See Tld and
THE.)
The threshold can also be used as a variable. The program below places a marker on the largest signal that is
greater than the threshold level.
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336 Programming
TH TH
Description/Default
Threshold
value
defaults to nine major
below
divisions
reference level.
UP or DN to step threshold by 10 dB.
Range Restriction
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