Common Measurement Settings
R&S
®
FSW
482
User 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
Note:
When triggering or gating is activated, the squelch function is automatically dis-
abled.
(See
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:
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
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
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"
Remote command:
TRIG:SOUR EXT
,
TRIG:SOUR EXT2
TRIG:SOUR EXT3
Trigger and Gate Configuration
