R&S ESU Series Operating Manual page 497

R&S ESU
CALCulate<1|2>:MARKer<1...4>:FUNCtion:DEModulation:SQUelch:LEVel 0 to 100 PCT
This command sets the trigger level for the squelch function.
Example:
"CALC:MARK:FUNC:DEM:SQU ON"
'Switches on the sqelch function.
"CALC:MARK:FUNC:DEM:SQU:LEV 80 PCT"
'Sets the squelch to 80%.
Characteristics: *RST value: 50PCT
SCPI: device-specific
Mode: A
CALCulate<1|2>:MARKer<1...4>:FUNCtion:MDEPth[:STATe]
This command switches on the measurement of the AM modulation depth. An AM-modulated carrier
is required on the screen for correct operation. If necessary, marker 1 is previously activated and set
to the largest signal available.
The level value of marker 1 is regarded as the carrier level. On activating the function, marker 2 and
marker 3 are automatically set as delta markers symmetrically to the carrier to the adjacent maxima of
the trace.
If the position of delta marker 2 is changed, delta marker 3 is moved symmetrically with respect to the
reference marker (marker 1). If the position of delta marker 3 is changed, fine adjustment can be
performed independently of delta marker 2.
The R&S ESU calculates the power at the marker positions from the measured levels.
The AM modulation depth is calculated from the ratio of power values at the reference marker and the
delta markers. If the two AM sidebands differ in power, the average value of the two power values is
used for calculating the AM modulation depth.
The numeric suffix <1...4> of :MARKer is irrelevant with this command.
Example:
"CALC:MARK:X 10MHZ"
'Sets the reference marker (marker 1) to the carrier signal at 10 MHz
"CALC:MARK:FUNC:MDEP ON"
'Switches on the modulation depth measurement in screen A.
"CALC:DELT2:X 10KHZ"
'Sets delta markers 2 and 3 to the signals at 10 kHz from the carrier signal
"CALC:DELT3:X 9.999KHZ"
'Corrects the position of delta marker 3 relative to delta marker 2.
Characteristics: *RST value: OFF
SCPI: device-specific
Mode: A
6.58
Remote Control – Description of Commands
CALCulate Subsystem
Operating Manual 1302.6163.12 - 03