R&S FSW Series User Manual

Remote Commands
R&S
®
FSW
1261User Manual 1173.9411.02 ─ 43
EXTernal | EXTernal1 | EXT1
The external reference from the "REF INPUT 10 MHZ" connec-
tor is used; if none is available, an error flag is displayed in the
status bar
E10
The external reference from "REF INPUT 1..50 MHZ" connector
is used with a fixed 10 MHZ frequency; if none is available, an
error flag is displayed in the status bar
E100
The external reference from the "REF INPUT 100 MHZ / 1 GHz"
connector is used with a fixed 100 MHZ frequency; if none is
available, an error flag is displayed in the status bar
E1000
The external reference from "REF INPUT 100 MHZ / 1 GHz"
connector is used with a fixed 1 GHZ frequency; if none is avail-
able, an error flag is displayed in the status bar
EAUTo
The external reference is used as long as it is available, then the
instrument switches to the internal reference
SYNC
The external reference is used; if none is available, an error flag
is displayed in the status bar
Example:
ROSC:SOUR EXT
Manual operation: See "Reference Frequency Input" on page 700
See "Behavior in case of missing external reference"
on page 701
[SENSe:]ROSCillator:SOURce:EAUTo?
This command queries the current reference type in case you have activated an auto-
matic switch to the internal reference if the external reference is missing.
Return values:
<Reference> INT | EXT
INT
internal reference
EXT
external reference
Example:
SENS:ROSC:SOUR:EAUT?
Queries the currently available reference type.
Usage: Query only
Manual operation: See "Behavior in case of missing external reference"
on page 701
Configuring the R&S FSW

R&S FSW Series Specifications

General

Brand	R&S
Model	FSW Series
Category	Measuring Instruments
Language	English