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3 Spectrum Analyzer Mode

3.5 ACP Measurement

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

Dependencies Not available in multicarrier applications (MSR, 5GNR, LTE Modes)

Couplings Coupled with:

[:SENSe]:ACPower:CARRier[1]|2:RCARrier <integer>

Preset 0

State Saved Saved in instrument state

Min 0

Max 9

Ref Carrier Freq

Sets the reference carrier frequency.

Remote Command

[:SENSe]:ACPower:CARRier[1]|2:RCFRequency <freq>

[:SENSe]:ACPower:CARRier[1]|2:RCFRequency?

Subopcode: 1 = BTS/Downlink (Default), 2 = MS/Uplink

Example

:ACP:CARR:RCFR 250 MHz

:ACP:CARR:RCFR?

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 Does not appear in MSR, LTEAFDD, LTEATDD and 5G NR Modes

Couplings LTEAFDD and LTEATDD Modes do not support the following couplings

Coupled to Center Frequency

If the center frequency changes, Ref Carrier Freq is calculated using the following three steps;

Ref Freq1 = Ctr Freq - (Total of all Carrier Widths / 2)

Ref Freq2 = Ref Freq1 + (Total of all Carrier Widths up to Ref Carrier)

Ref Freq = Ref Freq2 + (0.5 * Carrier Width of Ref Carrier)

If Ref Carrier Freq changes, Center Frequency is calculated using the following three steps;

Ctr Freq1 = Ref Freq - (0.5 * Carrier Width of Ref Carrier)

Ctr Freq2 = Ctr Freq1 - (Total of all Carrier Widths up to Ref Carrier)

Ctr Freq = Ctr Freq2 + (Total of all Carrier Widths / 2)

This ensures that the carriers are always centered on the screen

1054 Spectrum Analyzer Mode User's &Programmer's Reference

Keysight x-series User Manual

Other manuals for Keysight x-series