Rohde & Schwarz SMBV100A, Руководство пользователя

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Remote Control Commands
R&S
®
SMBV100A
631 Operating Manual 1407.6062.32 ─ 08
[:SOURce<hw>]:FREQuency:OFFSet <Offset>
The command sets the frequency offset of a downstream instrument, e.g. a mixer. If a
frequency offset is entered, the frequency entered with
SOURce:FREQuency:...
no
longer corresponds to the RF output frequency. The following correlation applies:
SOURce:FREQuency:...
= RF output fre
SOURce:FREQuency:OFFSet
.
Entering an offset does not change the RF output frequency, but rather the query value
of
SOURce:FREQuency:...
.
Parameters:
<Offset> float
Range:
-67GHz to 67GHz
Increment: 0.01Hz
*RST:
0Hz
Default unit: Hz
Example: FREQ:OFFS 500kHz
sets the frequency offset to 500 kHz.
Usage: SCPI confirmed
[:SOURce<hw>]:FREQuency:SPAN <Span>
This command specifies the span for the sweep. This setting in combination with the
center frequency setting (
[SOUR]:FREQ:CENT
) defines the sweep range.
This command is linked to the commands
[SOUR]:FREQ:STAR
and
[:SOUR]:FREQ:STOP
, i.e. changing these values causes the
SPAN
value to change,
and vice versa:
SPAN
= (
STOP - STARt
)
Negative values for
SPAN
are permitted;
STARt
>
STOP
then applies.
Parameters:
<Span> float
Range:
0 to RFmax
Increment: 0.01Hz
*RST:
400MHz
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.
Usage: SCPI confirmed
SOURce Subsystem