Keysight Technologies 8163A/B, Programming Manual

Page: 198 / 306

198 8163A/B, 8164A/B & 8166A/B Mainframes Programming Guide
4 Measurement Operations & Settings
command: :CONFigure[ n ][:CHANnel[ m ]]:OFFSet:WAVelength:VALue
syntax: :CONFigure[ n ]][:CHANnel[ m ]]:OFFSet:WAVelength:VALue<wsp><lambda>[PM | NM | UM | MM| M],<offset[DB]> | TOREF
description: Adds a value pair (wavelength; offset) to the offset table, or overwrites an existing value pair.
The offset table entries are ordered from shortest to longest wavelength.
parameters: <lambda>
<offset>
TOREF
The wavelength for the offset table entry, in m
The power offset to be applied at <lambda>.
To query the current power value measured by attenuator with power control see
:FETCh[n][:CHANnel[m]][:SCAlar]:RETurnloss?
on page 88 (Fetch) and
:READ[n][:CHANnel[m]][:SCALar]:POWer[:DC]?
on page 92 (Read).
Calculates the difference between the power measured by an external powermeter (hosted in the same
mainframe) and the power measured by the attenuator module’s integrated powermeter, and stores it as
the offset.
P
Offset (
λ
)
(dB) = P
att
(dBm) - P
ext
(dBm)
See:
:CONFigure[n][:CHANnel[m]]:OFFSet:WAVelength:REFerence
on page 198
(Attenuator modules with power control only).
response: none
example: CONF1:OFFS:WAV:VAL +1.55000000E-006,TOREF
affects: All attenuator modules (TOREF applicable to attenuator modules with power control only).
command: :CONFigure[ n ][:CHANnel[ m ]]:OFFSet:WAVelength:REFerence
syntax: :CONFigure[ n ]][:CHANnel[ m ]]:OFFSet:WAVelength:REFerence<wsp><slot>,<channel>
description: Specifies the slot and channel of the external powermeter (hosted in the same mainframe as the attenuator module) used by
TOREF.
See:
:CONFigure[n][:CHANnel[m]]:OFFSet:WAVelength:VALue
on page 198
parameters: <slot>
<channel> Slot number of the powermeter.
Channel number of the powermeter.
response: none
example: CONF1:OFFS:WAV:REF 4,2
affects: Attenuator modules with power control.