HP 8163A Programming Manual page 102

command: [:SOURce[n]][:CHANnel[n]]:POWer:ATTenuation?
syntax: [:SOURce[n]][:CHANnel[n]]:POWer:ATTenuation?[MIN|DEF|MAX]
description: Returns the attenuation level of the optical attenuator if this has been
installed.
The value returned applies only to the attenuation mode (see
[:SOURce[n]][:CHANnel[n]]:POWer:ATTenuation:AUTO? on page 103).
parameters: Also allowed are:
response: attenuation level relevant to the current value or specified parameter (if
MIN, MAX, or DEF are chosen as a parameter).
sour2:pow:att? min → 22.00DB<END>
example:
affects: All Tunable Laser modules with an in-built optical attenuator and all fixed-
wavelength Laser Source modules.
command: [:SOURce[n]][:CHANnel[n]]:POWer:ATTenuation:AUTO
syntax: [:SOURce[n]][:CHANnel[n]]:POWer:ATTenuation:AUTO<wsp>
OFF|ON|0|1
description: Selects Automatic or Manual Attenuation Mode.
In Automatic Attenuation Mode, you specify the output power.
In Manual Attenuation Mode, you must specify both the laser output power,
and the attenuation level.
parameters: OFF or 0:
ON or 1:
response:
none
example:
sour2:pow:att:auto 1
affects: All Tunable Laser modules with an in-built optical attenuator
Introduction to Programming
Signal Generation – The SOURce Subsystem
MIN: minimum amplitude level
MAX: maximum amplitude level
DEF: This is not the preset (*RST) default value but
is half the sum of, the minimum amplitude
level and the maximum amplitude level
Attenuation Mode
Power Mode
102