Rohde & Schwarz FSV3000, User Manual

Page: 192 / 1489

Measurements and results
R&S
®
FSVA3000/ R&S
®
FSV3000
192 User Manual 1178.8520.02 ─ 08
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 5.3.5.5, "MSR channel names" , on page 198).
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 5.3.6.3, "How to configure an MSR ACLR measurement" ,
on page 201
Remote command:
[SENSe:]POWer:ACHannel:SPACing[:ACHannel]
on page 870
[SENSe:]POWer:ACHannel:SPACing:ALTernate<ch>
on page 871
[SENSe:]POWer:ACHannel:SPACing:UACHannel
on page 887
[SENSe:]POWer:ACHannel:SPACing:UALTernate<ch>
on page 888
Adjacent Channel Bandwidths ← Adjacent Channel Definition
The adjacent channel bandwidth is normally predefined by the transmission technology
standard. The correct bandwidth is set automatically for the selected technology. The
bandwidth for each channel is indicated by a colored bar in the display.
Remote command:
[SENSe:]POWer:ACHannel:BANDwidth:ACHannel
on page 869
[SENSe:]POWer:ACHannel:BANDwidth:ALTernate<ch>
on page 869
[SENSe:]POWer:ACHannel:BANDwidth:UACHannel
on page 888
[SENSe:]POWer:ACHannel:BANDwidth:UALTernate<ch>
on page 889
Weighting Filters ← Adjacent Channel Definition
Weighting filters allow you to determine the influence of individual channels on the total
measurement result. For each channel, you can activate or deactivate the use of the
weighting filter and define an individual weighting factor ("Alpha:" value).
Remote command:
Activating/Deactivating:
[SENSe:]POWer:ACHannel:FILTer[:STATe]:ACHannel
on page 873
Channel power and adjacent-channel power (ACLR) measurement