Rohde & Schwarz ESW Series - Reference Frequency Configuration

Remote Commands in the Receiver Application
R&S
®
ESW
622User Manual 1177.6298.02 ─ 08
ABORt
Abort a Windows shutdown/restart. This can only be used during
the time-out period.
CLOSe
Close the firmware.
RESTart
Restart the firmware.
Example:
SYST:SHUT
Switch the analyzer to standby state.
Usage: Setting only
15.9.2
Reference Frequency Configuration
[SENSe:]ROSCillator:LBWidth.........................................................................................622
[SENSe:]ROSCillator:O640.............................................................................................622
SOURce<si>:EXTernal<ext>:ROSCillator:EXTernal:FREQuency.........................................623
[SENSe:]ROSCillator:OSYNc.......................................................................................... 623
[SENSe:]ROSCillator:SOURce........................................................................................ 623
[SENSe:]ROSCillator:SOURce:EAUTo?........................................................................... 624
[SENSe:]ROSCillator:TRANge.........................................................................................625
[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 13-2).
Default unit: Hz
Example:
ROSC:LBW 3
Manual operation: See "Loop Bandwidth" on page 333
[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.
General Instrument Setup