NORMARC 3526 Instruction Manual

16-element two-freqency localizer antenna system

Hide thumbs

Table Of Contents

Table of Contents

Quick Links

Download this manual

Commercial-in-Confidence

NORMARC 3526 16-E

Park Air Systems AS

Author

Approved by

NORMARC 7000 ILS

OCALIZER

NTENNA

NSTRUCTION

Name

Alf W. Bakken

Harald Sandernes

LEMENT

YSTEM

ANUAL

Signature

AWB (Sign.)

HSA (Sign.)

FREQENCY

Date

15-Nov-02

02-Apr-04

Instruction Manual

21453/Rev.3.1/03-Feb-04

Table of Contents

Need help?

Do you have a question about the 3526 and is the answer not in the manual?

Questions and answers

Summary of Contents for NORMARC 3526

Page 1 Commercial-in-Confidence NORMARC 7000 ILS NORMARC 3526 16-E LEMENT FREQENCY OCALIZER NTENNA YSTEM NSTRUCTION ANUAL Park Air Systems AS Name Signature Date Author Alf W. Bakken AWB (Sign.) 15-Nov-02 Approved by Harald Sandernes HSA (Sign.) 02-Apr-04 NORMARC 7000 ILS Instruction Manual 21453/Rev.3.1/03-Feb-04...
Page 2 The copyright and the foregoing restrictions on copyright use and disclosure extend to all media in which this information may be preserved including magnetic storage, punched card, paper tape, computer printout, visual display, etc. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page i of viii...
Page 3 The use of this manual is limited to the operation and maintenance of the system stated in the Title Page. It shall not be used for purposes of product manufacture. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page ii of viii...
Page 4: First Aid In Case Of Electric Shock
Ensure that the tongue is not blocking the throat. Blow again. Send for medical assistance if possible. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page iii of viii...
Page 5 The electro static shielding package shall not be opened without operator and work area being properly protected as stated above. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page iv of viii...
Page 6: Shipping Precautions
Documentation of the latest revision is enclosed in the manual. Please contact us if you should need information on older revisions of modules for servicing purposes. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page v of viii...
Page 7: Table Of Contents
4.2.1 Cable and Antenna fault identification ................18 4.2.2 CL, NF Disagreement ......................18 4.2.3 Near Field Plot ........................18 4.2.4 Antenna return loss measurement..................19 NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page vi of viii...
Page 8 Course line .........................27 5.7.2 Course sector........................27 5.7.3 Clearance...........................27 Near field monitor adjustments ..................27 1: D ....................28 PPENDIX RAWINGS Format A4 ..........................28 Format A3 ..........................28 NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page vii of viii...
Page 9: List Of Illustrations
Figure 5-2 Phase and amplitude transfer measurement set-up Figure 5-3 Antenna return loss measurement set-up IST OF TABLES Table 1-1 NORMARC 3526 Antenna system signal distribution and antenna elements spacing Table 2-1 Cable connection to NORMARC 7000 Table 2-2 Power dividers output power ratio Table 4-1 Typical antenna fault values displayed in the monitor Table 5-1 DDM sensitivity as a function of electrical phase error equal to 2°...
Page 10: General Information
Commercial-in-Confidence General information This handbook describes the NORMARC 16 element/two-frequency ILS Localizer Antenna System. Installation requirements and procedures are described in the NORMARC 7000 ILS Installation and Commissioning Handbook. Antenna system The antenna system comprises: • 16 log-periodic antenna elements (LPDA) installed on a mechanical structure •...
Page 11: Mast Construction
NORMARC 3526 Composite Course/Clearance DDM and SDM patterns %DDM %SDM HBK 1255 Azimuth angle ( Figure 1-2 NORMARC 3526 Composite Course/Clearance DDM and SDM patterns NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 2 of 28...
Page 12: Figure 1-3 Normarc 3526 Course And Clearance Radiation Patterns
Commercial-in-Confidence NORMARC 3526 Course and Clearance radiation patterns Azimuth angle ( HBK 1254 Figure 1-3 NORMARC 3526 Course and Clearance radiation patterns NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 3 of 28...
Page 13: Figure 1-4 Horizontal Radiation Pattern For The Antenna Element (Lpda) In Free Space
Figure 1-4 Horizontal radiation pattern for the antenna element (LPDA) in free space Table 1-1 (in Section 1.5) shows the complete signal distribution data and antenna spacing. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 4 of 28...
Page 14: Antenna System Signal Distribution
19.23 5.32 13.78 2.52 Table 1-1 NORMARC 3526 Antenna system signal distribution and antenna elements spacing Near Field Monitor Antenna The near field antenna consists of a two-elements antenna installed on the extended runway centre line. The recommended distance between the antenna system and the NF antenna is 80m –...
Page 15: Technical Specifications
Course Line (CL), Displacement Sensitivity (DS), and Clearance (CLR) Course line adjustment range External connectors N (female) Dimensions 60 x 60 x 21 cm Weight 23 kg NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 6 of 28...
Page 16: Near Field Monitor Antenna
Gain 6.5 dBi Front/back ratio 9 dB VSWR <1.5 Connector N (female) Dimensions 1.42 m wide, 1 m long Weight 4.6 kg NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 7 of 28...
Page 17: Technical Description
GRP/Aluminium leg. In addition the heat afflicted zones (HAZ) caused by welding of the flanges act as weak points. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 8 of 28...
Page 18: Figure 2-1 Mechanical Fuses
HBK 1235 Mechanical fuse on diagonal stays Al. Stays w/safe joint Al. rivets (5 pcs, 4mm) HBK 1236 Figure 2-1 Mechanical fuses NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 9 of 28...
Page 19: Log-Periodic Dipole Antenna Element (Lpda)
See Figure 2-2 and drawing no. 17941A4 with layout drawing no. 17895A4. Figure 2-2 Feeder board at the front of the antenna NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 10 of 28...
Page 20: Cable And Antenna Fault Monitor, And Monitor Pick-Up Loop Circuit
An overview of the cable and antenna fault monitor (DC loop) system is described in Figure 2-3 below. Figure 2-3 Cable and antenna fault monitor (DC loop) system diagram NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 11 of 28...
Page 21: Figure 2-4 Monitor Board At The Back Of The Antenna
Figure 2-4. For details see circuit diagram no. 18737A4 with layout drawing no. 18656A4. Figure 2-4 Monitor board at the back of the antenna NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 12 of 28...
Page 22: Antenna Distribution Unit Dia 1365A (Adu)
All external connections are at the bottom of the cabinet. Figure 2-5 Overview of ADU cabinet NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 13 of 28...
Page 23: Electrical Description
The Electrical Circuit is shown in drawing no. 16369A4 sh.6. Cable connector information is given in drawing no. 16605A4 and the table below. This cable is fitted between the antenna distribution unit and the NORMARC 7000 cabinet. Cable wire Connector pin Comments Pin no.
Page 24: Monitoring Combining Unit (Mcu)
All external connections are at the bottom of the cabinet. Figure 2-6 Overview of MCU cabinet NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 15 of 28...
Page 25: Electrical Description
The antenna is a COMROD AV42-110 half-wave dipole antenna with reflector. Weather protection is achieved by embedding all conductors in glass fibre reinforced tubes. Cavities are filled with polyurethane foam. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 16 of 28...
Page 26: Operation
However, adjustment may be carried out during a major type flight inspection. Near Field Monitor Antenna There are no operating activities with the near field antenna. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 17 of 28...
Page 27: Maintenance
4.2.3 Near Field Plot A near field plot pattern significantly different from the reference plot may indicate a fault in an antenna signal path. See the NORMARC 70xxB Instruction Manual NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 ©...
Page 28: Antenna Return Loss Measurement
100 to 120 MHz. Value less than 20 dB within the ILS Localizer frequency band (108.10MHz – 111.95MHz) may indicated a fault condition. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 19 of 28...
Page 29: Adjustments Procedure
3. Vector voltmeter including four-port directional coupler. 4. Network Analyser (optional for antenna return loss measurement). 5. PIR (NORMARC 3710B) with portable antenna and 20 - 30 dB attenuator. 6. Test accessories such as dummy loads, test cables and coaxial adaptors.
Page 30: Vertical Alignment Of Antenna Element Support Masts
Switch off the course transmitter. With the clearance transmitter on repeat the phasing procedure, now adjusting the clearance SBO phase shifter associated with TX to air. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 21 of 28...
Page 31: Antenna Pair Phasing
1. Connect the antenna cables A1 and A16 to the ADU outputs marked A1 and A16 respectively. 2. Connect all other ADU outputs to dummy load. Use the PIR (NORMARC 3710) with portable test antenna. 3. On the runway establish a point officially marked as the centreline for DDM measurements.
Page 32: Antenna Cable / Adu Phase
Connect each antenna cable and monitor cable to antenna element load and source respectively. Apply a vector voltmeter or network analyser in a test set-up as in Figure 5-2. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 23 of 28...
Page 33: Figure 5-2 Phase And Amplitude Transfer Measurement Set-Up
If this amplitude tolerance is far exceeded a possible failure in the monitor loop is indicated. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS...
Page 34: Antenna Return Loss
For a specific course sector width (CS) of the antenna system a set of corresponding DDM and SDM values exists unique for each antenna output feed (clearance transmitter turned off). For CS = 4°: NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 25 of 28...
Page 35: Procedure 1 Ddm Measurements
The course SBO attenuator setting will influence the measured DDM values. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 26 of 28...
Page 36: Clearance Sbo Power
After the antenna system has been flight calibrated, move the NF antenna until the DDM is 0.0% (0 µA) measured with the PIR. NORMARC 7000 ILS NORMARC 3526 Instruction Manual 21453/Rev.3.1/03-Feb-04 © 2004 Park Air Systems AS Page 27 of 28...
Page 37: Appendix 1: Drawings
Drawings are listed in the tables according to format and ascending numbers. Format A4 Drawing no. Title 2670 NM 3526 Parts list to drawings 16362A3 and 17934A3 6348A4 OL 522 Wiring 16369A4 sh.6 DIA 1365A Circuit diagram DC loop 16558A4...
Page 38: Parts List
Park Air Systems Parts List Page 1 of 1 Product Title Doc.no. Issue 2670 NM 3526 16 Elements /2 Freq.LLZ Ant. System Prepared / Date Approved / Date Assembly dwg.no. Issue Reference ARJ /291095 16362A3 2670M08.DOC/ECO3976_8 17934A3 Item Qty. Description Dwg.no.