Rohde & Schwarz SMAB-B92 - Page 556

Remote Control Commands
R&S
®
SMA100B
554User Manual 1178.3834.02 ─ 05
A variation of the instrument current automatically leads to a variation of the DDM
value and the DDM value in dB.
Parameters:
<Current> float
Range: -8.57125E-4 to 8.57125E-4
Increment: 1E-7
*RST: 0
Example: See Example "Configure and generate an ILS glide slope signal"
on page 542.
Manual operation: See "DDM Current" on page 133
[:SOURce<hw>]:ILS[:GS|GSLope]:DDM:DIRection
<Direction>
Sets the simulation mode for the ILS glide slope modulation signal. A change of the
setting automatically changes the sign of the DDM value.
Parameters:
<Direction> UP | DOWN
UP
The 150-Hz modulation signal is predominant, the DDM value is
negative (the airplane is too low, it must climb).
DOWN
The 90-Hz modulation signal is predominant, the DDM value is
positive (the airplane is too high, it must descend).
*RST: UP
Example: See Example "Configure and generate an ILS glide slope signal"
on page 542.
Manual operation: See "FlyMode" on page 132
[:SOURce<hw>]:ILS[:GS|GSLope]:DDM:LOGarithmic <Logarithmic>
Sets the depth of modulation value for ILS glide slope modulation in dB.
See also [:SOURce<hw>]:ILS[:GS|GSLope]:DDM[:DEPTh] on page 556.
Parameters:
<Logarithmic> float
Range: -999.9 to 999.9
Increment: 1E-4
*RST: 0
Example: See Example "Configure and generate an ILS glide slope signal"
on page 542.
Manual operation: See "DDM Logarithmic" on page 133
SOURce Subsystem