R&S SMJ100A, Руководство по эксплуатации

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Remote Control Commands
R&S
®
SMJ100A
678 Operating Manual 1403.7458.32 ─ 14
Return values:
<Actual> float
Range:
0 to 100
Increment: 0.01
*RST:
3
Example: SOUR:BB:MCCW:CFAC:MODE SLOW
BB:MCCW:CFAC:ACT?
Response:
3
Usage: Query only
[:SOURce<hw>]:BB:MCCW:CFACtor:MODE <Mode>
Sets the mode by which automatic settings will minimize the crest factor or hold it at a
chosen value.
Parameters:
<Mode> OFF | CHIRp | SLOW
OFF
Crest factor optimization is switched off. The carrier PHASE set-
ting has an effect.
CHIRp
The crest factor is very rapidly optimized to < 3 dB for multi car-
rier signals so that all carriers are switched on and have the
same amplitude. The computation time is independent of the
number of carriers. In other carrier configurations the achievable
crest factor is worse.
SLOW
The crest factor entered using
SOURceBB:MCCW:CFACtor
is
maintained for all carrier configurations by means of automatic
settings. The computation time depends on the number of carri-
ers and on the crest factor that has been set. Computation time
increases only when the number of carriers exceeds 256 and
the crest factor is above 4
dB.
*RST: CHIRp
Example: BB:MCCW:CFAC:MODE OFF
switches off automatic crest factor optimization.
The setting
SOURBB:MCCW:CARR:PHAS
has an effect.
Manual operation: See "Optimize Crest Factor Mode" on page 427
[:SOURce<hw>]:BB:MCCW:CLOCk?
Queries the output clock rate. The output clock rate depends on the number of carriers
an the selected carrier spacing.
SOURce Subsystem