Remote Commands
R&S
®
Cable Rider ZPH
446
User Manual 1321.0950.02 ─ 07
[SENSe:]POWer:ACHannel:PRESet:RLEVel
This command adjusts the reference level to the measured signal power.
This automatic routine makes sure that the that the signal power level does not over-
load the R&S Cable Rider ZPH or limit the dynamic range by too small a S/N ratio.
To determine the best reference level, the R&S Cable Rider ZPH aborts current mea-
surements and performs a series of test sweeps. After it has finished the test, it contin-
ues with the actual measurement.
This command is an event and therefore has no *RST value and no query.
Example:
POW:ACH:PRES:RLEV
Initiates an ACP measurement and adjusts the reference level.
Usage:
Event
[SENSe:]POWer:ACHannel:REFerence:TXCHannel:AUTO
<TxReferenceMode>
This command automatically selects a reference channel for relative ACLR measure-
ments.
The number of transmission channels and adjacent
/
alternate channels has to be
greater than 0 for the command to work.
Parameters:
<TxReferenceMode> MANual | MINimum | MAXimum | LHIGhest
MANual
Defines a reference channel for relative ACLR measurements.
You need at least one channel for the command to work.
MINimum
Reference is the transmission channel with the lowest power.
MAXimum
Reference is the transmission channel with the highest power.
LHIGhest
Reference is the lowest transmission channel for lower adjacent
channels and highest transmission channel for upper adjacent
channels.
Example:
POW:ACH:REF:TXCH:AUTO MIN
Sets the TX channel with the lowest power as reference chan-
nel.
[SENSe:]POWer:ACHannel:REFerence:TXCHannel:MANual
<TxReferenceChannel>
This command defines a reference channel for relative ACLR measurements.
The number of transmission channels and adjacent
/
alternate channels has to be
greater than 0 for the command to work.
Remote Control - Commands
