Instrument Function
R&S
®
SMB100A
177Operating Manual 1407.0806.32 ─ 21
"Step"
Generates the sweep signal step-by-step, manually triggered.
To perform the sweep steps, enter the frequency value under Current
Freq - Frequency Sweep. You can directly enter the value, but also
use the UP and DOWN navigation keys or the ROTARY KNOB.
You can determine the step width below in the entry field "Step Lin" or
"Step Log", see Step Lin/Log - Frequency Sweep.
If a step is out of the sweep range ("Start Freq" or "Stop Freq"), it is
ignored.
Note: To step through the sweep frequencies in remote control
mode, use the FREQ:MAN command with the UP or DOWN parameter.
Example:
SOUR:FREQ:CENT 300MHz
SOUR:FREQ:SPAN 400MHz
SOUR:SWE:FREQ:SPAC LIN
SOUR:SWE:FREQ:STEP:LIN 100MHz
SOUR:FREQ:MODE MAN
TRIG:FSW:SOUR SING
set sweep mode "Step".
SOUR:FREQ:MODE SWE
activate sweep mode, the frequency is set to "Start Freq".
SOUR:FREQ:MAN UP
set the frequency to the next higher sweep frequency.
SOUR:FREQ:MAN DOWN
set the frequency to the next lower sweep frequency.
"Extern Single"
Generates a single sweep cycle when an a external trigger event
occurs.
The sweep steps within the cycle are performed automatically, con-
trolled by the dwell time. If one cycle is completed, the instrument
waits for the next trigger event.
To trigger the sweep, apply an external trigger signal.
Refer to the description of the rear panel for information on the con-
nectors for external trigger signal input (see Chapter 2.2, "Rear Panel
Tour", on page 21).
Example:
SOUR:SWE:FREQ:MODE AUTO
TRIG:FSW:SOUR EXT
SOUR:FREQ:MODE SWE (External trigger)
RF Block
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