Test Results at Frankfurt Airport

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Presentation transcript:

Test Results at Frankfurt Airport T. Kleinmann DFS

Measurement Equipment ILS field receiver, Type EVS-200 of Rohde&Schwarz Raw data acquisition at 33 Hz for DDM and RF-Level Antenna Rohde&Schwarz HF-108 Directivity: gain is 1.2 at 112 MHz, front to rear and right/left ratios 6 dB In special cases (Position 2 and 8) the opposite LLZ antenna was used as receiving antenna Notebook PC for recording with ILMA (DFS ILS Measurement Application) Post processing and filtering evaluation by help of Excel for ICAO Filtering at different speeds T[sec]=92,6/V[km/h] typical speed: 60 km/h, in special cases (P5): 10 km/h

Ground Measurement Equipment

Flight Check Equipment FCS King Air 350, Aerodata FIS Antenna positions Top antenna (V-dipole) Tail antenna (loop) symmetrical at both sides

ILS Equipment LLZ-25L: Dipole/Reflector 21/7 element wide aperture, 2-frequency system, Width adjusted to 2,87°, frequency is 110.70 MHz Runway length is 4000 m, distance RWY-LLZ 261,6 m LLZ-07R: Dipole/Reflector 21/7 element wide aperture, 2-frequency system Width adjusted to 2,80°, frequency is 110.95 MHz Runway length is 4000 m, RWY-LLZ 379,2 m

ILS Equipment

Test positions for A380 at Frankfurt Airport 1 2 X 3 4 5, 30° and 23° rotated 8, LLZ-07R radiating 6 7 9 Note: blue coloured positions indicate GP related measurements

Test positions for B747 at Frankfurt Airport 1 2 X 3 4 5, 30° and 23° rotated 8, LLZ-07R radiating 6 7 1.1, LLZ-07R radiating 5.1, 30° and 23° rotated 8.1, LLZ-07R radiating

Reference Record

P-1 Record (A380) measured by opposite LLZ antenna

P-1 Record (B747) P-1.1 (Exit via TWY D) A380 B747 measured by opposite LLZ antenna P-1.1 (Exit via TWY D) measured by opposite LLZ antenna

P-2 Record (A380)

P-2 Record (B747) (not orthogonal to C/L) measured by opposite LLZ antenna

P-X Record (A380) Tail 1850m from LLZ and 200m from RWY-CL

P-3 Record (A380) Tail 3100m from LLZ and 200m from RWY-CL

P-4 Record (A380) Tail 3600m from LLZ and 200m from RWY-CL

P-5 Record (A380) Tail 3620m from LLZ and 210m from RWY-CL rotated 30° towards RWY

P-5 Record (A380) (10 km/h) Tail 3620m from LLZ and 210m from RWY-CL rotated 30° towards RWY

P-5 Record (B747) Tail 3620m from LLZ and 210m from RWY-CL rotated 23° towards RWY Tail 3420m from LLZ and 275m from RWY-CL rotated 30° towards RWY P-5.1

P-5 Record (B747) (10 km/h) Tail 3620m from LLZ and 210m from RWY-CL rotated 23° towards RWY

P-6 Flight Record (A380) GP LLZ

P-7 Flight Record (A380) GP LLZ

P-8 Record (A380) measured by opposite LLZ antenna A380 900m from LLZ !

P-8 Record (B747) P-8.1 (Crossing via TWY H) A380 B747 measured by opposite LLZ antenna B747 900m from LLZ ! P-8.1 (Crossing via TWY H) measured by opposite LLZ antenna B747 2680m from LLZ !

P-9 Flight Record (A380) GP (CAT II/III limits) GP (CAT I limits) A380 270m in front of GP antenna GP (CAT I limits)

Summary of tests A380-ILS Frankfurt 1 2 X 3 4 5, 30° and 23° rotated 8, with LLZ-07R radiating 6, GP and LLZ 7, GP and LLZ 9, for GP test Note: Plane red coloured = ILS out-of-tolerance / Plane green coloured = ILS in tolerance / Plane orange coloured = no real conclusion available

Summary of tests B747-ILS Frankfurt 1 2 4 5, 30° and 23° rotated 8, LLZ-07R radiating 6 7 1.1, LLZ-07R radiating 5.1, 30° and 23° rotated 8.1 Note: Plane red coloured = ILS out-of-tolerance / Plane green coloured = ILS in tolerance / Plane orange coloured = ILS in tolerance for CAT I operation

PX ATOLL PREDICTION Raw data with omnidirectionnal antenna Max 8A PX ATOLL PREDICTION Raw data with omnidirectionnal antenna Raw data with DFS receiver antenna  Data with DFS antenna filtered using ICAO time constant Max 7.5A GP disturbance

P3 ATOLL PREDICTION Raw data with omnidirectionnal antenna Max 22A P3 ATOLL PREDICTION Raw data with omnidirectionnal antenna Raw data with DFS receiver antenna  Data with DFS antenna filtered using ICAO time constant Max 17A

P4 ATOLL PREDICTION Raw data with omnidirectionnal antenna Max 23A P4 ATOLL PREDICTION Raw data with omnidirectionnal antenna Raw data with DFS receiver antenna  Data with DFS antenna filtered using ICAO time constant Max 20A

P5 – 60km/h ATOLL PREDICTION Raw data with omnidirectionnal antenna Max 7A Raw data with omnidirectionnal antenna Raw data with DFS receiver antenna  Data with DFS antenna filtered using ICAO time constant Max 7A

P5 – 10km/h ATOLL PREDICTION Raw data with omnidirectionnal antenna Max 3A Raw data with omnidirectionnal antenna Raw data with DFS receiver antenna  Data with DFS antenna filtered using ICAO time constant Max 4A