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Measurement Operations & Settings Signal Conditioning
152 Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition
command:
:OUTPutn[:CHANnel[m]]:APMode?
syntax: :OUTPutn[:CHANnel[m]]:APMode?
description: Queries whether the user has amended the power value or the attenuation value.
This use of this command is optional.
Included for compatibility with Agilent 8156A mainframe.
parameters: none
response: boolean 0 User has amended the attenuation value.
1 User has amended the power value.
example: OUTP1:APMode? → 0<END>
affects: All attenuator modules.
command:
:OUTPutn[:CHANnel[m]]:POWer
syntax:
:OUTPutn[:CHANnel[m]]:POWer<wsp><value>[PW | NW | UW | MW | W | DBM ] | MIN | MAX |
DEF
description: Sets the output power value (P ).
If your attenuator module does not include the power control feature, the new filter attenua-
tion (
α
filter (new)
) is calculated from the reference power (P
ref
) :
P
set(new)
(dBm) = P
ref
(dBm) -
α
filter (new)
(dB) - P
Offset
(dB)
If your attenuator module includes the power control feature, the filter attenuation is changed
until the set power (measured by the module’s internal power meter) has been reached.
P
set(new)
(dBm) = P
att(new)
(dBm) - P
offset
(dB)
If the set power cannot be achieved ExP (indicating ’Excessive Power’ ) is displayed, and the
appropriate GPIB status bit is set. The status of these bits can be queried using “:STA
Tus:Q UEStio nable:CONDi tio n[ :LEVel 0]?” on page 71
parameters: <value>
MIN | MAX | DEF
Desired output power (if unit not specified current unit is used).
Sets the output power to the module limits, or the module default.
response: none
example: OUTP1:POW 12
affects: All attenuator modules.
command:
:OUTPutn[:CHANnel[m]]:POWer?
syntax: :OUTPutn[:CHANnel[m]]:POWer<wsp>MIN | MAX | DEF
description: Without the optional parameter, queries the output power value.
parameters: MIN | MAX | DEF Queries the output power module limits, or the module default.
response: 4 byte Intel floating point; output power in current power unit.
example: OUTP1:POW? → 12<END>
affects: All attenuator modules.