Rohde & Schwarz SMBV100A, Руководство пользователя

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Instrument Function
R&S
®
SMBV100A
344 Operating Manual 1407.6062.32 ─ 08
Set Synchronization Settings
Performs automatically adjustment of the instrument's settings required for the synchro-
nization mode, selected with the parameter
​
"Synchronization Mode" .
SCPI command:
​
[:
​
SOURce<hw>]:
​
BB:
​
ARB:
​
CLOCk:
​
SYNChronization:
​
EXECute
​
on page 508
Clock Source
Selects the clock source.
"Internal" The internal clock reference is used to generate the symbol clock.
"External" The external clock reference is fed in as the symbol clock via the REF
IN connector.
While working in master-slave synchronous mode, an external clock
source has to be selected for the slave-instrument(s) and the CLOCK
IN connector has to be connecter to the CLOCK OUT connector of the
master instrument.
This allows the slave instrument(s) to synchronies its clock to the sys-
tem clock of the master instrument.
The symbol rate must be correctly set to an accuracy of +/-2 % (see
data sheet).
The polarity of the clock input can be changed with the aid of "Global
Trigger/Clock Settings".
SCPI command:
​
[:
​
SOURce<hw>]:
​
BB:
​
ARB:
​
CLOCk:
​
SOURce
​
on page 507
Clock Mode
Enters the type of externally supplied clock.
"Sample" A sample clock is supplied via the CLOCK connector.
"Multiple Sam-
ple" A multiple of the sample clock is supplied via the CLOCK connector;
the sample clock is derived internally from this.
The "Multiplier" window provided allows the multiplication factor to be
entered.
SCPI command:
​
[:
​
SOURce<hw>]:
​
BB:
​
ARB:
​
CLOCk:
​
MODE
​
on page 506
Sample Clock Multiplier
Enters the multiplication factor for clock type "Multiple".
SCPI command:
​
[:
​
SOURce<hw>]:
​
BB:
​
ARB:
​
CLOCk:
​
MULTiplier
​
on page 507
Measured External Clock
Indicates the measured frequency of the external clock signal. This enables the user to
permanently monitor the frequency of the externally introduced clock.
This information is displayed only if the external clock source has been selected.
SCPI command:
CLOCk:INPut:FREQuency?
Baseband Signal - Baseband Block