R&S FSV3000 Series - Page 176

Measurements and Results
R&S
®
FSVA3000/ R&S
®
FSV3000
176User Manual 1178.8520.02 ─ 01
For details on setting up channels, see Chapter 7.3.6.3, "How to Configure an MSR
ACLR Measurement", on page 183.
Number of Adjacent Channels ( Adj Count )...............................................................176
Adjacent Channel Definition .......................................................................................176
└ Adjacent Channel Spacings .........................................................................176
└ Adjacent Channel Bandwidths .....................................................................177
└ Weighting Filters .......................................................................................... 177
└ Limit Checking ............................................................................................. 177
Number of Adjacent Channels ( Adj Count )
Defines the number of adjacent channels above and below the Tx channel block in an
MSR signal. You must define the carrier channel to which the relative adjacent-channel
power values refer (see " Reference Channel " on page 161).
Remote command:
[SENSe:]POWer:ACHannel:ACPairs on page 754
Adjacent Channel Definition
Defines the channels adjacent to the transmission channel block in MSR signals. A
maximum of 12 adjacent channels can be defined.
For MSR signals, adjacent channels are defined in relation to the center frequency of
the first and last transmission channel in the entire block, i.e.:
●
The lower adjacent channels are defined in relation to the CF of the first Tx chan-
nel in the first sub block.
●
The upper adjacent channels are defined in relation to the CF of the last Tx chan-
nel in the last sub block.
Adjacent channels are named "Adj" and "Alt1" to "Alt11" by default; the names can be
changed manually (see Chapter 7.3.5.5, "MSR Channel Names", on page 180).
In all other respects, channel definition is identical to common ACLR measurements.
Adjacent Channel Spacings ← Adjacent Channel Definition
Channel spacings are normally predefined by the selected technology but can be
changed.
For MSR signals, adjacent channels are defined in relation to the center frequency of
the first and last transmission channel in the entire block, i.e.:
●
The spacing of the lower adjacent channels refers to the CF of the first Tx channel
in the first sub block.
●
The spacing of the upper adjacent channels refers to the CF of the last Tx channel
in the last sub block.
For details, see Chapter 7.3.6.3, "How to Configure an MSR ACLR Measurement",
on page 183
Remote command:
[SENSe:]POWer:ACHannel:SPACing[:ACHannel] on page 756
[SENSe:]POWer:ACHannel:SPACing:ALTernate<ch> on page 756
[SENSe:]POWer:ACHannel:SPACing:UACHannel on page 771
[SENSe:]POWer:ACHannel:SPACing:UALTernate<ch> on page 772
Channel Power and Adjacent-Channel Power (ACLR) Measurement