R&S SMA100B - Page 607

Remote control commands
R&S
®
SMA100B
607User Manual 1178.3834.02 ─ 09
Example: See Example "Configure and generate an ILS glide slope signal"
on page 594.
Manual operation: See "DDM Polarity" on page 148
[:SOURce<hw>]:ILS[:GS|GSLope]:DDM:STEP <DdmStep>
Sets the variation of the difference in depth of modulation via the rotary knob.
Parameters:
<DdmStep> DECimal | PREDefined
*RST: DECimal
Example: See Example "Configure and generate an ILS glide slope signal"
on page 594.
Manual operation: See "DDM Step" on page 150
[:SOURce<hw>]:ILS[:GS|GSLope]:DDM[:DEPTh] <Depth>
Sets the difference in depth of modulation between the signal of the upper/left lobe (90
Hz) and the lower/right lobe (150 Hz). The maximum value equals the sum of the mod-
ulation depths of the 90 Hz and the 150 Hz tone. The following is true:
ILS:GS|GSL:DDM:DEPTh = (AM(90Hz) - AM(150Hz))/100%
A variation of the DDM value automatically leads to a variation of the DDM value in dB
and the value of the instrument current.
Parameters:
<Depth> float
Range: -0.8 to 0.8
Increment: 1E-4
*RST: 0
Example: See Example "Configure and generate an ILS glide slope signal"
on page 594.
Manual operation: See "DDM Depth" on page 150
[:SOURce<hw>]:ILS[:GS|GSLope]:FREQuency <CarrierFreq>
Sets the carrier frequency of the signal.
Parameters:
<CarrierFreq> float
Range: 100E3 to 6E9
Increment: 0.01
*RST: 334.7E6
Example: See Example "Configure and generate an ILS glide slope signal"
on page 594.
Manual operation: See "Carrier Frequency" on page 146
SOURce subsystem