Procom EVS200 user manual Preparation for Operation External AF input, DSP output, Setup

VOR/ILS Analyzer EVS200

Chapter 2: Preparation for Operation

External AF input

Via the AF input (AF-EXT) at the rear side the unit can be fed with an AF signal for further analysis of typical AF parameters (e.g. level, frequency). This is very applicable for receivers which cannot per- form AF analysis.

input level: approx.: 1 to 2 Vrms / 50 Ω e.g. VOR/ILS Analyzer ￿=external receiver

Connection AF-EXT of the VOR/ILS Analyzer EVS200 with the AF output of an external receiver

DSP output

On the DSP-OUT at the rearside e.g. a XY-tracer can be connected. The scaling of the XY values can be set for any mode (localizer/glideslope) in the setup (DDM Y / t-RANGE)or in ILS-Mode

(Y / t-SETUP).

output signals in VOR- and ILS-Mode:

	ILS-Mode	VOR-Mode
Display 1	normalized DDM-values	no output
	(DC-voltage)
	Range 1 to 4
Display 2	voice-frequency	voice-frequency
	(300 to 3000 Hz)	(300 to 3000 Hz)

(corresponding
	DC voltage)	scaling in the setup:
(0 V ±5 mV)	0 DDM	(1 V ±5 mV)	Localizer		Glideslope
		Range 1	0.0	±25%	0.0 ±50%
			0 ±0.25 DDM		0.0 ±0.5 DDM
		Range 2	0.0	±2.5%	0.0 ±5%
			0 ±0.025 DDM		0.0 ±0.05 DDM
		Range 3	0.0	±2.58%	8.75 ±5%
			0.0 ±0.0258 DDM		0.0875 ±0.05 DDM
		Range 4	0.0	±50%	17.5 +5%
			0.0 ±0.5 DDM		0.175 +0.05 DDM

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