R&S FSV3000 Series - Page 177

Measurements and Results
R&S
®
FSVA3000/ R&S
®
FSV3000
177User Manual 1178.8520.02 ─ 01
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 754
[SENSe:]POWer:ACHannel:BANDwidth:ALTernate<ch> on page 755
[SENSe:]POWer:ACHannel:BANDwidth:UACHannel on page 772
[SENSe:]POWer:ACHannel:BANDwidth:UALTernate<ch> on page 773
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 758
[SENSe:]POWer:ACHannel:FILTer[:STATe]:ALTernate<ch> on page 759
[SENSe:]POWer:ACHannel:FILTer[:STATe]:UACHannel on page 774
[SENSe:]POWer:ACHannel:FILTer[:STATe]:UALTernate<ch> on page 774
Alpha value:
[SENSe:]POWer:ACHannel:FILTer:ALPHa:ACHannel on page 757
[SENSe:]POWer:ACHannel:FILTer:ALPHa:ALTernate<ch> on page 758
[SENSe:]POWer:ACHannel:FILTer:ALPHa:UACHannel on page 773
[SENSe:]POWer:ACHannel:FILTer:ALPHa:UALTernate<ch> on page 773
Limit Checking ← Adjacent Channel Definition
During an ACLR measurement, the power values can be checked whether they
exceed user-defined or standard-defined limits. A relative or absolute limit can be
defined, or both, for each individual adjacent channel. Both limit types are considered,
regardless whether the measured levels are absolute or relative values. The check of
both limit values can be activated independently. If any active limit value is exceeded,
the measured value is displayed in red and marked by a preceding asterisk in the
result table.
Note that in addition to activating limit checking for individual channels, limit checking
must also be activated globally for the MSR ACLR measurement (see " Limit Checking
" on page 172).
Remote command:
CALCulate<n>:LIMit<li>:ACPower[:STATe] on page 765
CALCulate<n>:LIMit<li>:ACPower:ACHannel:ABSolute:STATe on page 761
CALCulate<n>:LIMit<li>:ACPower:ACHannel:ABSolute on page 761
CALCulate<n>:LIMit<li>:ACPower:ACHannel[:RELative]:STATe
on page 763
Channel Power and Adjacent-Channel Power (ACLR) Measurement