TH

Threshold

Clips signal responses below the threshold level.
Syntax
TH
XTH
Item Description/Default
RwIe
Number Any real or integer number. Default unit is dBm. Range dependent on
RL setting.
Equivalent
Softkey:
TRRESIILD
ON OFF .
Preset State: Clip off, positioned one division above bottom graticule line.
Step Increment: One division.
Related Commands: AUTO, DL, MEANTH, MKPK, PEAKS, RL.
Restrictions: Not available with Analog+ display mode. See “ANLGPLUS” for more
information.
Example
OUTPUT
718*"TH
UP-"
9 8
kncreases
the threshold
level.
Description
The threshold level is eight graticule divisions below the top of the screen unless otherwise
specified. The threshold level is annotated in reference level units at the lower-left corner of
the spectrum analyzer screen. AUTO deactivates clipping. The TH level is used for next peak
marker movements (see “MKPK”) and
the
PEAKS command even if the display clipping is off.
Query Response
5-550
Programming Commands