Remote Control Commands > SOURce Subsystem > SOURce:ILS Subsystem > [:SOURce]:ILS[:GS|GSLope]:MODE
[:SOURce]:ILS[:GS|GSLope]:MODE <Mode>

Selects the operating mode for the ILS-GS modulation signal.

Parameters:
<Mode>
NORM| ULOBe| LLOBe
NORM

ILS-GS modulation is active.

ULOBe

Amplitude modulation of the output signal with the upper lobe (90Hz) signal component of the ILS-GS signal is active. The modulation depth of the 90Hz signal results from the settings of commands SOURce:ILS:GS:SDM and SOURce:ILS:GS:DDM[:DEPTh] according to (command SOURce:ILS:GS:DDM:DIR UP):

AM(90Hz) = 0.5 * (ILS:GS:SDM + ILS:GS:DDM * 100%)

and for SOURce:ILS:GS:DDM:DIR DOWN according to

AM(90Hz) = 0.5 * (ILS:GS:SDM - ILS:GS:DDM * 100%)

LLOBe

Amplitude modulation of the output signal with the lower lobe (150Hz) signal component of the ILS-GS signal is active. The modulation depth of the 150Hz signal results from the settings of commands SOURce:ILS:GS:SDM and SOURce:ILS:GS:DDM[:DEPTh] according to (command SOURce:ILS:GS:DDM:DIR UP):

AM(150Hz) = 0.5 * (ILS:GS:SDM + ILS:GS:DDM * 100%)

and for SOURce:ILS:GS:DDM:DIR DOWN according to

AM(150Hz) = 0.5 * (ILS:GS:SDM - ILS:GS:DDM * 100%)

*RST:NORM
Example: ILS:MODE ULOB

Activates amplitude modulation of the output signal with the upper lobe (90Hz) signal component of the ILS-GS signal.

Options: Option R&S SMA-K25
Manual operation: See "Mode - ILS-GS Modulation"

 


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