Keysight Technologies 8163A/B - Page 187

8163A/B, 8164A/B & 8166A/B Mainframes Programming Guide 187
Measurement Operations & Settings 4
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 Keysight 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 attenuation (a
filter (new)
) is calculated
from the reference power (P
ref
) :
P
set(new)
(dBm) = P
ref
(dBm) - a
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 :STATus:OPERation:CONDition[:LEVel0]? on page 56
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.