Remote Control Commands
R&S
®
SMB100A
337Operating Manual 1407.0806.32 ─ 13
[:SOURce<hw>]:PM:INTernal:DEViation <Deviation>
The command selects the deviation for the phase modulation signals. The sum of the two
values must not exceed the overall modulation deviation set with command
SOURce:PM:DEViation.
Parameters:
<Deviation> float
Range: 0 to 20
*RST: 0.5 RAD
Example:
PM:INT1:DEV 10RAD
selects a deviation of 10 RAD for the LF generator.
[:
SOURce<hw>]:PM:MODE <Mode>
The command selects the mode for the phase modulation.
Parameters:
<Mode> HBANdwidth | HDEViation | LNOise
HBANdwidth
The maximum range for modulation bandwidth is available. How-
ever, phase noise is increased for low frequencies. The range for
PhiM deviation is limited. This mode is recommended for high
modulation frequencies.
HDEViation
The maximum range for PhiM deviation is available. Phase noise
is improved for low frequencies. The range for modulation fre-
quency is limited (see data sheet). This mode is recommended for
low modulation frequencies and/or high PhiM deviation.
LNOise
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)
*RST:
HBANdwidth
Example:
PM:MODE LNO
selects Low Noise mode for external phase modulation.
Manual operation: See "PhiM Mode" on page 177
[:SOURce<hw>]:PM:SENSitivity?
The command queries the input sensitivity of the EXT MOD input in RAD/V. The com-
mand is only effective if the external modulation source is selected (SOUR:PM:SOUR
EXT). The returned value depends on the modulation deviation setting
(SOUR:PM:DEViation). This value is assigned to the voltage value for full modulation
of the input.
SOURce Subsystem
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