Rohde & Schwarz SMBV100A, Руководство пользователя

Страница: 612 / 780

Remote Control Commands
R&S
®
SMBV100A
595 Operating Manual 1407.6062.32 ─ 08
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>
The command 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 carrier
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 carriers
and on the crest factor that has been set. Computation time increa-
ses 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.
[:SOURce<hw>]:BB:MCCW:CLOCk?
The command queries the output clock rate. The output clock rate depends on the num-
ber of carriers an the selected carrier spacing.
SOURce Subsystem