Common Measurement Settings
R&S
®
FSW
482User Manual 1173.9411.02 ─ 43
Trigger Source
Selects the trigger source. If a trigger source other than "Free Run" is set, "TRG" is dis-
played in the channel bar and the trigger source is indicated.
For gated measurements, this setting also selects the gating source.
For more information see "Trigger Source" on page 477.
Note: When triggering or gating is activated, the squelch function is automatically dis-
abled.
(See "Squelch" on page 547).
Note: If the 1.2 GHz bandwidth extension option (B1200) or the internal 2 GHz option
(B2001) is active, only an external trigger, IF power trigger, or no trigger is available.
Remote command:
TRIGger[:SEQuence]:SOURce on page 1053
[SENSe:]SWEep:EGATe:SOURce on page 1060
Free Run ← Trigger Source
No trigger source is considered. Data acquisition is started manually or automatically
and continues until stopped explicitly.
In the Spectrum application, this is the default setting.
Remote command:
TRIG:SOUR IMM, see TRIGger[:SEQuence]:SOURce on page 1053
External Trigger 1/2/3 ← Trigger Source
Data acquisition starts when the TTL signal fed into the specified input connector
meets or exceeds the specified trigger level.
(See "Trigger Level" on page 484).
Note: The "External Trigger 1" softkey automatically selects the trigger signal from the
TRIGGER 1 INPUT connector on the front panel.
For details, see the "Instrument Tour" chapter in the R&S FSW Getting Started manual.
"External Trigger 1"
Trigger signal from the TRIGGER 1 INPUT connector.
"External Trigger 2"
Trigger signal from the TRIGGER 2 INPUT / OUTPUT connector.
Note: Connector must be configured for "Input" in the "Output" config-
uration
For R&S FSW85 models, Trigger 2 is not available due to the second
RF input connector on the front panel.
"External Trigger 3"
Trigger signal from the TRIGGER 3 INPUT / OUTPUT connector on
the rear panel.
Note: Connector must be configured for "Input" in the "Output" config-
uration.
(See Chapter 8.2.7, "Trigger Input/Output Settings", on page 438).
Remote command:
TRIG:SOUR EXT, TRIG:SOUR EXT2
TRIG:SOUR EXT3
Trigger and Gate Configuration