Keysight x-series Instruction Manual

3 Short-Range Comms & IoT Mode
3.7 ACP Measurement
Reference Carrier (Carrier Index)
Sets the reference carrier. Relative power measurements are made from the
reference carrier.
If set to Auto, the measurement selects the carrier with the highest power as the
reference carrier and the Ref Carrier parameter is updated. If a value is entered
when Ref Carrier Mode is set to Auto, the mode changes to Man.
If set to Man, the value that you enter for the Ref Carrier is used as the reference
carrier.
In MSR, LTEAFDD, LTEATDD and 5G NR Modes, this control is called Carrier Index
and has a different SCPI command. In these Modes, it sets the carrier index of the
reference power. The power of the carrier selected by this index becomes reference
power when "Power Ref" on page 948 is Carrier Index. Any value up to the MAX can
be set, though the measurement only deals with number of carriers specified by
Carrier. If the index is larger than Carrier, reference power in this measurement
becomes NaN and therefore all relative power results are NaN.
For more information, see "Carrier Index (Modes: MSR, LTEAFDD, LTEATDD, and
5GNR)" on page 945.
Remote Command
[:SENSe]:ACPower:CARRier[1]|2:RCARrier <integer>
[:SENSe]:ACPower:CARRier[1]|2:RCARrier?
Subopcode: 1 = BTS/Downlink (Default), 2 = MS/Uplink
Example
:ACP:CARR:RCAR 1
:ACP:CARR:RCAR?
Notes Note that Carrier subopcode 2 is not supported in some Modes. In those cases, Carrier subopcode 1 is
used for both BTS and MS and commands with subopcode 2 are accepted without error but ignored
For LTEAFDD and LTEATDD Modes, this control is not shown. In order to maintain backwards compat-
ibility with legacy LTE FDD/TDD Modes, the SCPI command is supported in the LTE & LTE-A
converged applications
Dependencies Grayed-out if there is only one carrier
Does not appear in MSR, LTEAFDD, LTEATDD and 5G NR Modes
Couplings If you enter a carrier value that is currently configured as having no power present, that carrier
changes to having power present
Preset Auto determined
State Saved Saved in instrument state
Min/Max 1/Number of available carriers
Backwards
Compatibility SCPI
[:SENSe]:MCPower:RCARrier[1]|2
Auto Function
944 Short Range Comms & IoT Mode User's &Programmer's Reference

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)