Rohde & Schwarz SMF-B1, Руководство по эксплуатации, Страница: 488 / 653

Remote Control Commands
R&S
®
SMF100A
473 Operating Manual 1167.2319.02 ─ 12
Parameters:
<Offset> float
Increment: 0.01
*RST:
0
Example: FREQ:OFFS 500kHz
sets the frequency offset to 500 kHz.
Manual operation: See "Offset" on page 151
[:SOURce<hw>]:FREQuency:PLL:MODE <Mode>
Sets the bandwidth of the main PLL (Phase Locked Loop).
Parameters:
<Mode> NORMal | NARRow
*RST:
NORMal
Manual operation: See "Main Pll Bandwidth" on page 152
[:SOURce<hw>]:FREQuency:SPAN <Span>
Determines the extent of the frequency sweep range. This setting in combination with
the center frequency setting (
[:SOURce<hw>]:FREQuency:CENTer
) defines the
sweep range.
This parameter is related to the start and stop frequencies. If you change the fre-
quency, the span changes accordingly.
f
SPAN
= f
STOP
- f
STARt
f
STARt
> f
STOP
is permitted.
Parameters:
<Span> float
Range:
full frequency range
Increment: see the data sheet: RF characteristics > Resolution
of setting
*RST: 400E6
Example:
FREQ:CENT 400 MHz
sets the center frequency of the frequency sweep to 400 MHz.
FREQ:SPAN 200 MHz
sets a span of 200 MHz. This sets the sweep range to 300 MHz
to 500 MHz.
Manual operation: See "Span - Frequency Sweep" on page 165
[:SOURce<hw>]:FREQuency:STARt <Start>
Sets the start frequency for the RF sweep.
SOURce Subsystem