Measurement Functions – The SENSe Subsystem Measurement Operations & Settings
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition 91
command:
:READ[n][:CHANnel[m]][:SCALar]:RETurnloss?
syntax: :READ[n]:[CHANnel[m]][:SCALar]:RETurnloss?
description: Reads the current return loss value. It provides its own software triggering and does not
need a triggering command.
If the software trigger system operates continuously (see
“:INITiate[n]:[CHANnel[m]]:CONTinuous?” on page 89), this command is identical to
“:FETCh[n][:CHANnel[m]][:SCAlar]:RETurnloss?” on page 87.
If the software trigger system does not operate continuously, this command is identical to
generating a software trigger (“:INITiate[n]:[CHANnel[m]][:IMMediate]” on page 88) and
then reading the power meter value.
NOTE The return loss module must be running for this command to be effective.
parameters: none
response: The current power meter reading as a float value in dB.
example: read1:ret? → +1.33555600E-000<END>
affects: All return loss modules
command:
:READ[n][:CHANnel[m]][:SCALar]:MONitor?
syntax: :READ[n]:[CHANnel[m]][:SCALar]:MONitor?
description: Reads the power value at the monitor diode (forward path). It provides its own software trig-
gering and does not need a triggering command.
If the software trigger system operates continuously (see
“:INITiate[n]:[CHANnel[m]]:CONTinuous?” on page 89), this command is identical to
“:FETCh[n][:CHANnel[m]][:SCAlar]:MONitor?” on page 88.
If the software trigger system does not operate continuously, this command is identical to
generating a software trigger (“:INITiate[n]:[CHANnel[m]][:IMMediate]” on page 88) and
then reading the power meter value.
NOTE The return loss module must be running for this command to be effective.
parameters: none
response: The current power meter reading as a float value in W or dBm
example: read1:mon? → +1.33555600E-000<END>
affects: All return loss modules
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