NORMARC 3526 Manuals

Manuals and User Guides for NORMARC 3526. We have 1 NORMARC 3526 manual available for free PDF download: Instruction Manual

NORMARC 3526 Instruction Manual (57 pages)

16-ELEMENT TWO-FREQENCY LOCALIZER ANTENNA SYSTEM

Brand: NORMARC | Category: Antenna | Size: 3 MB

First Aid in Case of Electric Shock
4
Shipping Precautions
6
Revision Numbers
6
Table of Contents
7
List of Illustrations
9
General Information
10
Antenna System
10
Antenna Element Construction
10
Mast Construction
11
Performance and Radiation Patterns
11
Figure 1-1 Antenna Element Details
11
Figure 1-2 NORMARC 3526 Composite Course/Clearance DDM and SDM Patterns
11
Figure 1-3 NORMARC 3526 Course and Clearance Radiation Patterns
12
Figure 1-4 Horizontal Radiation Pattern for the Antenna Element (LPDA) in Free Space
13
Antenna System Signal Distribution
14
Near Field Monitor Antenna
14
Table 1-1 NORMARC 3526 Antenna System Signal Distribution and Antenna Elements Spacing
14
Technical Specifications
15
General
15
Sixteen Elements Antenna Array
15
Antenna Element
15
Antenna Distribution Unit
15
Monitoring Combining Unit
15
Near Field Monitor Antenna
16
Technical Description
17
Antenna Assembly
17
Mechanical Description
17
Frangibility
17
Figure 2-1 Mechanical Fuses
18
Log-Periodic Dipole Antenna Element (LPDA)
19
Antenna Matching Circuit
19
Figure 2-2 Feeder Board at the Front of the Antenna
19
Cable and Antenna Fault Monitor, and Monitor Pick-Up Loop Circuit
20
Figure 2-3 Cable and Antenna Fault Monitor (DC Loop) System Diagram
20
Figure 2-4 Monitor Board at the Back of the Antenna
21
Antenna Distribution Unit DIA 1365A (ADU)
22
Mechanical Description
22
Figure 2-5 Overview of ADU Cabinet
22
Electrical Description
23
Cable and Antenna Fault Monitor Circuit (DC LOOP)
23
Power Distribution Components
23
Table 2-1 Cable Connection to NORMARC 7000
23
Table 2-2 Power Dividers Output Power Ratio
23
Monitoring Combining Unit (MCU)
24
Mechanical Description
24
Figure 2-6 Overview of MCU Cabinet
24
Electrical Description
25
Near Field Monitor Antenna
25
Operation
26
Mechanical, Antenna System
26
Electrical, Antenna System
26
Antenna Distribution Unit
26
A4 Phase Shifter
26
A4 Signal BNC Test Connector
26
Monitoring Combining Unit
26
CL Phase Shifter
26
CS Phase Shifter
26
Near Field Monitor Antenna
26
Maintenance
27
Preventive Maintenance
27
Annual Visual Inspection
27
Corrective Maintenance
27
Cable and Antenna Fault Identification
27
CL, NF Disagreement
27
Near Field Plot
27
Antenna Return Loss Measurement
28
Table 4-1 Typical Antenna Fault Values Displayed in the Monitor
28
Adjustments Procedure
29
General
29
Object
29
Discussion
29
Test Equipment Required
29
Conditions
29
Mechanical Alignments
29
Right Angle Points with Reference to Runway Centreline
29
Spacing Distance between Antenna Elements
29
Vertical Alignment of Antenna Element Support Masts
30
Horizontal Alignment of Antenna Elements/Support Masts
30
Electrical Alignments, Cable Phasing
30
CSB and SBO Cables
30
CSB/SBO Phasing
30
Figure 5-1 Cable Phasing Measurement Set-Up
30
Antenna Pair Phasing
31
Antenna Cable / ADU Phase
32
Check of Antenna Cable Length if Phase Error Larger than 10
32
Phase and Amplitude Transfer Measurement
32
Table 5-1 DDM Sensitivity as a Function of Electrical Phase Error Equal to 2
32
Figure 5-2 Phase and Amplitude Transfer Measurement Set-Up
33
Antenna Return Loss
34
Course Sector Width Adjustment
34
Figure 5-3 Antenna Return Loss Measurement Set-Up
34
Procedure 1 DDM Measurements
35
Procedure 2 Field DDM Check
35
Clearance SBO Power
36
Monitoring Combining Unit Adjustments
36
Course Line
36
Course Sector
36
Clearance
36
Near Field Monitor Adjustments
36
Appendix 1: Drawings
37
Format A4
37
Format A3
37
Parts List
38

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