R&S FSPN - Page 479

Remote Control
R&S
®
FSPN
479User Manual 1179.4363.02 ─ 01
Parameters:
<Bandwidth> <numeric value>
Bandwidths 20 mHz, 1 Hz and 100 kHz are supported.
Default unit: Hz
Example: //Define coupling bandwidth
ROSC:COUP:BAND:MODE MAN
ROSC:COUP:BAND 1HZ
[SENSe:]ROSCillator:COUPling:BANDwidth:MODE <Mode>
This command selects coupling bandwidth mode for the internal reference frequency.
Parameters:
<Mode> AUTO
Automatically selects an appropriate coupling bandwidth.
MANual
Manual selection of coupling bandwidth. You can select the
bandwidth with [SENSe:]ROSCillator:COUPling:
BANDwidth.
*RST: AUTO
Example: //Select coupling bandwidth mode
ROSC:COUP:BAND:MODE AUTO
[SENSe:]ROSCillator:COUPling:MODE <State>
This command turns the coupling of the internal reference frequency on and off.
Parameters:
<State> AUTO
Automatically turns the coupling on and off, depending on the
current measurement scenario.
OFF
Decouples the reference frequencies.
ON
Couples the reference frequencies.
*RST: AUTO
Example: //Synchronize reference frequencies
ROSC:COUP:MODE ON
[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.
Configuring the R&S
FSPN