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37xxxE OM A-157
ALPHABETICAL LISTING M
MENU DESCRIPTION GPIB COMMAND
SEARCH This menu provides control and readout for the marker
search function. When this function is selected, the
graph type for the active channel is automatically set to
LOG MAGNITUDE (other graph types are not allowed),
and taken out of time domain low pass or band pass
display. Frequency with time gate display is allowed.
SRCH
VALUE
–XXX.XXX dB
Target search value. A value from -999.999 to 999.999
dB may be entered.
SRCH
REFERENCE These menu choices let you enter the reference value
for the search. The reference may be:
-Graticule “0 dB”
-Position of Delta Ref. Marker (Marker 1 is used as the
D Ref Marker)
-Maximum value in Passband (default selection). Marker
1 is used to
indicate maximum.
None
MAXIMUM VALUE Selects maximum value as the reference. MMX
D REF MARKER Selects D Ref Marker (Marker 1) as the reference. DR1-DR6; DRX?
0 dB Selects 0 dB as the reference. MSR0; MSRX?
VALUE AT REFERENCE
–XXX.XXX dB
Displays the difference between the reference value and
0 dB.
OM1
SEARCH LEFT Goes to the next data point that is left (or right) of the
search marker (Marker 2) and whose value is equal to
VALUE plus the reference. If “TRACKING” is ON,
Marker 2 will search both left and right, and go to the
closest point whose value is equal to VALUE plus
reference. If there is no such point, the message
“VALUE NOT FOUND” is displayed in the data area.
Otherwise the marker goes to that coordinate and the
readout (under the search direction) is updated to reflect
that frequency.
MKSL
SEARCH RIGHT MKSR
XX.XXXXXXXXX GHz
SEARCH MRKR VALUES CH1:
XX.XXX dB
CH2: XX.XXX dB
CH3: XX.XXX dB
CH4: XX.XXX dB
None
TRACKING ON (OFF) When ON the active marker will change its frequency
value after every sweep to maintain the user entered
loss value. When OFF the marker stays at the same
frequency and reads out the magnitude value at that
frequency, except when a search is triggered.
MARKER READOUT
FUNCTIONS
Calls Menu M9, which lets you select readout marker
parameters.
Menu M7, Search