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-108Directivity: 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 EquipmentFCS 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 MHzRunway length is 4000 m, distance RWY-LLZ 261,6 m

• LLZ-07R:Dipole/Reflector 21/7 element wide aperture, 2-frequency systemWidth adjusted to 2,80°, frequency is 110.95 MHz Runway length is 4000 m, RWY-LLZ 379,2 m

ILS EquipmentLLZ25L Antenna Diagram

-100

-95

-90

-85

-80

-75

-70

-65

-60

-55

-50

-45

-40

-35

-30

-25

-20

-15

-10

-5

0

051015202530354045505560657075808590Horizontel Angle in Degree

RF

in d

B

CSB

SBO

CL_CSB

CL_SBO

10.04.2006 Flgh. Frankfurt/Main

10,6 dB

1

2X 3

45, 30° and 23° rotated

8, LLZ-07R radiating

67

9

Test positions for A380 at Frankfurt Airport

Note: blue coloured positions indicate GP related measurements

Test positions for B747 at Frankfurt Airport

1

2X 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

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

05001000150020002500300035004000

P-0_LeerfahrtRaw-Data [DDM]filtertered ValueCAT III Tol.900m-3400m from THR

P-1 Record (A380)

-0,02

-0,015

-0,01

-0,005

0

0,005

0,01

0,015

0,02

0 30 60 90 120 150 180 210

->sec

DD

M P0_Ref_Raw

P0_Ref_Filt

Toleranz

measured by opposite LLZ antenna

P-1 Record (B747)

measured by opposite LLZ antenna

-0,05

-0,03

-0,01

0,01

0,03

0,05

0,07

0,09

0,11

0 30 60 90

->sec

DD

M

P1 (A380) raw data

P1 (A380) filt. data

Toleranz

P1 (B747) raw data

P1 (B747) filt.data

A380

B747

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0 30 60 90 120->sec

DD

M

P1.1_Ref_Raw

P1.1_Ref_Filt

Toleranz

P-1.1(Exit via TWY D)

measured by opposite LLZ antenna

P-2 Record (A380)

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

05001000150020002500300035004000

P2_RawP2_FiltToleranz

-0,02

-0,015

-0,01

-0,005

0

0,005

0,01

0,015

0,02

0 30 60 90 120 150 180 210

->sec

DD

M P2_Ref_Raw

P2_Ref_Filt

Toleranz

P-2 Record (B747)(not orthogonal to C/L)

measured by opposite LLZ antenna

P-X Record (A380)

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

05001000150020002500300035004000

P-XRaw-Data [DDM]filtertered ValueCAT III Tol.900m-3400m from THR

Tail 1850m from LLZ and200m from RWY-CL

P-3 Record (A380)

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

05001000150020002500300035004000

P-3Raw-Data [DDM]filtertered ValueCAT III Tol.900m-3400m from THR

Tail 3100m from LLZ and 200m from RWY-CL

P-4 Record (A380)

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

05001000150020002500300035004000

P-4Raw-Data [DDM]filtertered ValueCAT III Tol.900m-3400m from THR

Tail 3600m from LLZ and 200m from RWY-CL

P-5 Record (A380)

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

05001000150020002500300035004000

P-5-30°Raw-Data [DDM]filtertered ValueCAT III Tol.900m-3400m from THR

Tail 3620m from LLZ and 210m from RWY-CL rotated 30° towards RWY

P-5 Record (A380) (10 km/h)

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

05001000150020002500300035004000

P-5-30°-10km/hRaw-Data [DDM]filtertered ValueCAT III Tol.900m-3400m from THR

Tail 3620m from LLZ and 210m from RWY-CL rotated 30° towards RWY

P-5 Record (B747)

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

05001000150020002500300035004000

P-3 (23°, 60 km/h)Raw-Data [DDM]filtertered ValueCAT III Tol.900m-3400m from THR

Tail 3620m from LLZ and 210m from RWY-CL rotated 23° towards RWY

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

05001000150020002500300035004000

P-5.1 (30°, 60 km/h)Raw-Data [DDM]filtertered ValueCAT III Tol.900m-3400m from THR

Tail 3420m from LLZ and 275m from RWY-CL rotated 30° towards RWY

P-5.1

P-5 Record (B747) (10 km/h)

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

05001000150020002500300035004000

P-5 (23°,10km/h)Raw-Data [DDM]filtertered ValueCAT III Tol.B747

Tail 3620m from LLZ and 210m from RWY-CL rotated 23° towards RWY

P-6 Flight Record (A380)

LLZ

GP

P-7 Flight Record (A380)

LLZ

GP

P-8 Record (A380)

-0,02

-0,015

-0,01

-0,005

0

0,005

0,01

0,015

0,02

0 30 60 90 120 150 180 210

->sec

DD

M P0_Ref_Raw

P0_Ref_Filt

Toleranz

measured by opposite LLZ antenna

A380 900m from LLZ !

P-8 Record (B747)

measured by opposite LLZ antenna

-0,04

-0,03

-0,02

-0,01

0

0,01

0,02

0,03

0,04

0 30 60 90 120 150

->sec

DD

M

P8 (A380) raw data

P8 (A380) filt. data

Toleranz

P8 (B747) raw data

P8 (B747) filt.dataA380

B747

P-8.1(Crossing via TWY H)

measured by opposite LLZ antenna

-0,02

-0,015

-0,01

-0,005

0

0,005

0,01

0,015

0,02

0 30 60 90 120 150 180 210 240 270 300 330 360

->sec

DD

M

P8_Raw

P8_Filt

Toleranz

B747 900m from LLZ !

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

Summary of tests A380-ILS Frankfurt

Note: Plane red coloured = ILS out-of-tolerance / Plane green coloured = ILS in tolerance / Plane orange coloured = no real conclusion available

1

2X 3

45, 30° and 23°rotated

8, with LLZ-07R radiating

6, GP and LLZ7, GP and LLZ

9, for GP test

Summary of tests B747-ILS Frankfurt

Note: Plane red coloured = ILS out-of-tolerance / Plane green coloured = ILS in tolerance / Plane orange coloured = ILS in tolerance for CAT I operation

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

GP disturbance

PXATOLL

PREDICTION

Raw data with omnidirectionnal antennaRaw data with DFS receiver antenna Data with DFS antenna filtered using ICAO time constant

Max 8A

Max 7.5A

P3ATOLL

PREDICTION

Raw data with omnidirectionnal antennaRaw data with DFS receiver antenna Data with DFS antenna filtered using ICAO time constant

Max 22A

Max 17A

P4ATOLL

PREDICTION

Raw data with omnidirectionnal antennaRaw data with DFS receiver antenna Data with DFS antenna filtered using ICAO time constant

Max 23A

Max 20A

P5 – 60km/hATOLL

PREDICTION

Raw data with omnidirectionnal antennaRaw data with DFS receiver antenna Data with DFS antenna filtered using ICAO time constant

Max 7A

Max 7A

P5 – 10km/hATOLL

PREDICTION

Raw data with omnidirectionnal antennaRaw data with DFS receiver antenna Data with DFS antenna filtered using ICAO time constant

Max 3A

Max 4A