R&S FSW Series - Configuring the Reference Frequency

Remote Commands
R&S
®
FSW
1259User Manual 1173.9411.02 ─ 43
● Customizing the Screen Layout.......................................................................... 1288
● Remote Commands for Language Settings........................................................1295
● Configuring the Network and Remote Control.................................................... 1295
● Checking the System Configuration....................................................................1300
● Signal Generator Control Commands.................................................................1307
● Using Service Functions..................................................................................... 1308
● Remote Commands for Synchronizing Parameters............................................1311
14.10.1 Configuring the Reference Frequency
[SENSe:]ROSCillator:LBWidth.......................................................................................1259
[SENSe:]ROSCillator:O100...........................................................................................1259
[SENSe:]ROSCillator:O640...........................................................................................1259
SOURce<si>:EXTernal<ext>:ROSCillator:EXTernal:FREQuency.......................................1260
[SENSe:]ROSCillator:OSYNc........................................................................................ 1260
[SENSe:]ROSCillator:SOURce...................................................................................... 1260
[SENSe:]ROSCillator:SOURce:EAUTo?......................................................................... 1261
[SENSe:]ROSCillator:TRANge.......................................................................................1262
[SENSe:]ROSCillator:LBWidth <Bandwidth>
Defines the loop bandwidth, that is, the speed of internal synchronization with the refer-
ence frequency. The setting requires a compromise between performance and increas-
ing phase noise.
For a variable external reference frequency with a narrow tuning range (+/- 0.5 ppm),
the loop bandwidth is fixed to 0.1 Hz and cannot be changed.
Parameters:
<Bandwidth> 0.1 Hz | 1 Hz | 3 Hz | 10 Hz | 30 Hz | 100 Hz | 300 Hz
The possible values depend on the reference source and tuning
range (see Table 12-2).
Default unit: Hz
Example:
ROSC:LBW 3
Manual operation: See "Loop Bandwidth" on page 702
[SENSe:]ROSCillator:O100 <State>
[SENSe:]ROSCillator:O640 <State>
This command turns the output of a reference signal on the corresponding connector
("Ref Output") on and off.
[SENSe:]ROSCillator:O100: Provides a 100 MHz reference signal on correspond-
ing connector.
[SENSe:]ROSCillator:O640: Provides a 640 MHz reference signal on correspond-
ing connector.
Parameters:
<State> ON | OFF | 1 | 0
Configuring the R&S FSW