R&S SMJ100A, Operating Manual

Page: 365 / 874

Instrument Function
R&S
®
SMJ100A
349 Operating Manual 1403.7458.32 ─ 14
Remote command:
[:SOURce<hw>]:BB:DM:SWITching:SOURce
on page 632
Filter
The filter is set in the Filter section.
Filter
Selects the baseband filter (see Chapter 5.8.2.4, "Baseband Filter - Custom Digital
Mod" , on page 333).
Remote command:
[:SOURce<hw>]:BB:DM:FILTer:TYPE
on page 647
Filter Parameter
Sets the filter parameter.
The filter parameter offered ("Roll Off Factor" or "B x T") depends on the currently
selected filter type.
Remote command:
[:SOURce<hw>]:BB:DM:FILTer:PARameter:APCO25
on page 645
[:SOURce<hw>]:BB:DM:FILTer:PARameter:COSine[:ROLLoff]
on page 645
[:SOURce<hw>]:BB:DM:FILTer:PARameter:GAUSs
on page 645
[:SOURce<hw>]:BB:DM:FILTer:PARameter:PGAuss
on page 645
[:SOURce<hw>]:BB:DM:FILTer:PARameter:RCOSine
on page 645
[:SOURce<hw>]:BB:DM:FILTer:PARameter:SPHase
on page 645
Cut Off Frequency Factor
(available for filter parameter Lowpass and APCO25 (LSM) only)
Sets the value for the cut off frequency factor. The cut off frequency of the filter can be
adjusted to reach spectrum mask requirements.
Remote command:
[:SOURce<hw>]:BB:DM:FILTer:PARameter:LPASs
on page 645
[:SOURce<hw>]:BB:DM:FILTer:PARameter:LPASSEVM
on page 645
[:SOURce<hw>]:BB:DM:FILTer:PARameter:APCO25Lsm:GAUSs
on page 646
[:SOURce<hw>]:BB:DM:FILTer:PARameter:APCO25Lsm:LOWPass
on page 646
Bandwidth
Determines the bandwidth of the cosine filter, so that the function H(f) = 0 is fulfilled for
f >= (1+RollOff)*Bandwidth/2 .
Remote command:
[:SOURce<hw>]:BB:DM:FILTer:PARameter:COSine:BANDwidth
on page 646
Oversampling
Determines the upsampling factor. If the check box is activated, the most sensible
parameter values are selected. The value depends on the coherence check. If the
check box is deactivated, the values can be changed manually.
Baseband Signal - Baseband Block