Instrument Function
R&S
®
SMBV100A
258Operating Manual 1176.8016.02 ─ 17
Remote command:
[:SOURce<hw>]:PM:SOURce on page 784
ɸM Mode
Selects the mode for the phase modulation.
"Normal"
The full range for modulation bandwidth and PM deviation is availa-
ble.
"High Deviation"
The maximum range for ɸM deviation is available. Phase noise is
improved for low frequencies compared to the default mode. The
range of modulation frequency is limited (see data sheet).
This mode is recommended for low modulation frequencies and/or
high ɸM deviation.
"Low Noise"
Phase modulation with phase noise and spurious characteristics
close to CW mode. The range for modulation bandwidth and PM
deviation is limited (see data sheet).
Remote command:
[:SOURce<hw>]:PM:MODE on page 784
ɸM Deviation
Sets the modulation deviation in RAD.
The maximum deviation depends on the set RF frequency and the selected modulation
mode (see data sheet).
If the entered deviation is too high for the set RF frequency, the instrument provides
the maximum value and displays an error message. The same applies, if the RF fre-
quency is set to a value, at which the deviation cannot be determined.
The deviation of the internal source must not exceed the deviation of the external
source in case of modulation source "Int+Ext".
Remote command:
[:SOURce<hw>]:PM[:DEViation] on page 782
[:SOURce<hw>]:PM:INTernal:DEViation on page 783
[:SOURce<hw>]:PM:EXTernal:DEViation on page 783
LF Gen Freq
Sets the frequency of the LF generator.
This setting affects all analog modulations which use the LF generator as the internal
modulation source.
Remote command:
[:SOURce]:LFOutput:FREQuency on page 758
LF Gen Shape
Selects the waveform shape of the LF signal.
RF Block
To Next Page
Loading...
