Rohde & Schwarz FSW26 - Frequency and Span Configuration

Common Measurement Settings
R&S
®
FSW
384User Manual 1173.9411.02 ─ 19
"Device Trig-
gered"
(Default) Sends a trigger when the R&S FSW triggers.
"Trigger
Armed"
Sends a (high level) trigger when the R&S FSW is in "Ready for trig-
ger" state.
This state is indicated by a status bit in the STATus:OPERation reg-
ister (bit 5), as well as by a low level signal at the AUX port (pin 9).
For details see "STATus:OPERation Register" on page 633 and the
R&S FSW Getting Started manual.
"User Defined"
Sends a trigger when user selects "Send Trigger" button.
In this case, further parameters are available for the output signal.
Remote command:
OUTPut:TRIGger<port>:OTYPe on page 859
Level ← Output Type ← Trigger 2/3
Defines whether a constant high (1) or low (0) signal is sent to the output connector.
Remote command:
OUTPut:TRIGger<port>:LEVel on page 859
Pulse Length ← Output Type ← Trigger 2/3
Defines the length of the pulse sent as a trigger to the output connector.
Remote command:
OUTPut:TRIGger<port>:PULSe:LENGth on page 860
Send Trigger ← Output Type ← Trigger 2/3
Sends a user-defined trigger to the output connector immediately. Note that the trigger
pulse level is always opposite to the constant signal level defined by the output "Level"
setting, e.g. for "Level = High", a constant high signal is output to the connector until
the "Send Trigger" button is selected. Then, a low pulse is sent.
Which pulse level will be sent is indicated by a graphic on the button.
Remote command:
OUTPut:TRIGger<port>:PULSe:IMMediate on page 860
6.3 Frequency and Span Configuration
The frequency and span settings define the scope of the signal and spectrum to be
analyzed with the R&S FSW.
● Impact of the Frequency and Span Settings.........................................................385
● Frequency and Span Settings...............................................................................387
● How To Define the Frequency Range...................................................................391
● How to Move the Center Frequency through the Frequency Range.................... 392
● How to Keep the Center Frequency Stable...........................................................392
Frequency and Span Configuration