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Measurement Operations & Settings Measurement Functions – The SENSe Subsystem
88 Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition
command:
:FETCh[n][:CHANnel[m]][:SCAlar]:MONitor?
syntax: :FETCh[n]:[CHANnel[m]][:SCAlar]:MONitor?
description: Reads current power value at a return loss module’s monitor diode (forward path). It does
not provide its own triggering and so must be used with either continuous software trigger-
ing (see “:INITiate[n]:[CHANnel[m]]:CONTinuous?” on page 89) or a directly preceding im-
mediate software trigger (see “:INITiate[n]:[CHANnel[m]][:IMMediate]” on page 88).
It returns the monitor value the previous software trigger measured. Any subsequent FETCh
command will return the same value, if there is no subsequent software trigger.
parameters: none
response: The current value as a float value in W or dBm.
example: fetc1:mon? → +6.73370400E-00<END>
affects: All return loss modules
command:
:INITiate[n]:[CHANnel[m]][:IMMediate]
syntax: :INITiate[n]:[CHANnel[m]][:IMMediate]
description: Initiates the software trigger system and completes one full trigger cycle, that is, one mea-
surement is made.
parameters: none
response: none
example: init
affects: All power meters, return loss modules.
dual sensors: Can only be sent to master channel, slave channel is also affected.
command:
:INITiate[n]:[CHANnel[m]]:CONTinuous
syntax: :INITiate[n]:[CHANnel[m]]:CONTinuous<wsp><boolean>
description:
Sets the software trigger system to continuous measurement mode.
parameters: A boolean value: 0 or OFF: do not measure continuously
1 or ON: measure continuously
response: none
example: init2:cont 1
affects: All power meters, return loss modules.
dual sensors: Can only be sent to master channel, slave channel is also affected.