Measurement Functions - The Sense Subsystem - HP 8163A Programming Manual

4.2 Measurement Functions – The SENSe
command: :FETCh[n][:CHANnel[n]][:SCAlar]:POWer[:DC]?
syntax: :FETCh[n]:[CHANnel[n]][:SCAlar]:POWer[:DC]?
description: Reads the current power meter value. It does not provide its own triggering
and so must be used with either continuous software triggering (see
":INITiate[n]:[CHANnel[n]]:CONTinuous" on page 75) or a directly
preceding immediate software trigger (see
":INITiate[n]:[CHANnel[n]][:IMMediate]" on page 74).
It returns the power meter 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 power meter value as a float value in dBm,W or dB.
NOTE
fetc1:pow? → +6.73370400E-04<END>
example:
affects: All power meter modules
command: :INITiate[n]:[CHANnel[n]][:IMMediate]
syntax: :INITiate[n]:[CHANnel[n]][:IMMediate]
description: Initiates the software trigger system and completes one full trigger cycle,
that is, one measurement is made.
parameters: none
response: none
example:
init
affects: All power meter modules
Introduction to Programming
Measurement Functions – The SENSe Subsystem
Subsystem
The SENSe subsystem lets you control measurement parameters
for a Power Sensor or Optical Head Interface module.
If the reference state is absolute, units are dBm or W.
If the reference state is relative, units are dB.
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