HP 8590 L-Series User Manual

4. To check the gate control function, press Cm], Gate Control, GATE CTL EDGE LVL so
that LVL (level) is underlined (see Figure 4-33).
&
REF .0 dBm
ATTEN 10 dB
GTpOS ,.........: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
;OG
%L
,‘, ,’
GATE OiLAY
: ,,,
60.000 Rlsec
~..~~.~.,,,,,,,,,,.,,,..,,,.,,.,,,......: ,,,,,,,,,
:
W,qSB :
SC FC
CORR
. . . . . . . ..~......~~~~~~~.......~~~~~~~.~.~...................~...,,,,,,,,,....,.,,,,,,,,,.,..,..,,,,
GATE
CTL
EDGE !&
.',", ..",
PREV
CENTER 0 Hz
MENU
SPAN 0 Hz
RES BW 3.0 MHz
UBW 1 NHz
XSWP 200 MS~C RT
Figure 4-33. Using the Level Gate Control
When the GATE CTL EDGE LVL softkey function is set to edge, triggering occurs at the edge
of the trigger input. When the GATE CTL EDGE LVL softkey function is set to level, the
gate is on whenever the trigger input is high. Because the trigger input for this example
is the HI SWEEP IN/OUT signal, and HI SWEEP IN/OUT signal is high (+ 5 V) during every
sweep, the level of the signal on screen is high.
Notice that the GATE DELAY, GATE TIME, and EDGE POL NEG POS softkeys are blanked
when the gate control is set to level. When the gate control is set to level (LVL), the
functions of gate delay, gate length, and edge trigger polarity no longer apply.
4-38 Making Measurements

HP 8590 L-Series Specifications

General

Brand	HP
Model	8590 L-Series
Category	Measuring Instruments
Language	English