Avionics MLS-801

Microwave Landing System Ramp TestSet

Controls on the IFRMLS-801 provide for angle offset, deviation andslewing in order to allow the operator to exercise the Glideslope andLocalizer deviation, to observe control surface motion and to test off- set approach angles. OtherFeatures •Dynamic Slew capability at 0.05, 0.1, 0.5 and 1.0 degrees/second.•Left and Right Clearance pulse simulation. •Azimuth, High Rate Azimuth and Back Azimuth offset approachsimulation of up to 40 degrees.•Elevation approach angle simulation from 1 to 10 degrees. •Fixed transmission frequency, set to the FAA specified channel(500).•Auxiliary RF, Video and Sync Pulse outputs for use in limitedbench testing.

The MLS-801 ramp industrial test set provides Microwave Landing System angle receiver go/no-goverification te sting s

•Rugged construction, meets MIL-T-28800D, Type 2, Class 2, Style Arequire- ments•Automatic Test Sequence mode to allowone person operation•Control Motion Deflection Position to testauto-pilot coupling•Complete simulation of the MLS transmis-sion cycle, including all angularinforma- tion as well as data words•Built-In-Test (BIT) forconfidence testingand fault isolation of the test set•Manual deflection controls forbothAzimuth and Elevation•Two poweroutput levels forshort andlong range testing requirements•Internal batteryallowing 2hours (approx.)of operation before recharge. Automatic powershutdown afterapproximately15 minutes of non-use Aeroflex is a leaderin the design, manufactureand marketing ofAvionics industrial test systems.The MLS-801ramp test set provides go/no-goverification ofthe Microwave Landing System angle receiverinstalled in an aircraft. The test set generates a single channel signal thatincludes all necessaryAM and DPSKmodula-tion fortesting ofthe azimuth, elevation, backazimuth and clearance functions as well as all basicdata words in theirstandard testconditions.

SPECIFICATION

RFFrequency MLS Channel 500, 5031 MHz ±10 kHz RF LEVELHIGH Range -69.5 dBW/m2@ 30 ft.; Range approximately 300 ft. LOW Range -89.5 dBW/m2@ 30 ft.; Range approximately 30 ft. MODULATION AM and DPSK signals that conform to FAA 14 CFR Part 17 requirements. Phase accuracy is 180 ±10 degrees

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