Nautel ATU-HP User Manual (English)

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ATU-HP

Automatic

Antenna Tuning

Unit

Technical Instruction Manual

Issue 2.0 .........................06 October 2011

Nautel Limited

10089 Peggy's Cove Road,

Hackett's Cove, NS, Canada B3Z 3J4

T.+1.902.823.2233 F.+1.902.823.3183

info@nautel.com

U.S. customers please contact:

Nautel Inc.

201 Target Industrial Circle, Bangor ME 04401

T.+1.207.947.8200 F.+1.207.947.3693

info@nautel.com

e-mail: support@nautel.com

www.nautel.com

Default Chapter7
- Default Chapter7
  - Table of Contents7
- 1 General Information15
  - Introduction15
Recommended Site Test Equipment and Special Tools17
- 2 Preparation for Use and Installation19
- Introduction19
- Mounting Considerations19
  - Environmental Considerations19
    - Antenna Structure19
    - Proximity to Transmitter19
- Preparation for Use19
Typical Site Layout20
Examples of Typical Installations (Sheet 1 of 2)21
Examples of Typical Installations (Sheet 2 of 2)22
- Customer Required Interfacing23
- RF Output Feed Cable23
- Pre-Startup User Determined Information24
  - Carrier Frequency24
  - Antenna Capacitance24
ATU-HP Automatic Antenna Tuning Unit25
- Available Options25
  - Solar Shield25
- Parts Supplied by Nautel25
- Test Equipment25
Initial RF Wiring Connections30
ATU Control/Monitor PWB - Pushbutton Switches and Leds30
Flow Diagram – Loading Coil Tuning31
Post-Inductive Tuning RF Wiring Connections32
Flow Diagram – Determining Antenna Resistance33
T1 Matching Transformer 50 Ohm Connections34
Determining 'R Match'35
Variometer Positioning Within Loading Coil L1A36
Variable Matching Transformer37
- A Loading Coil (DGPS) Series Connection (500-136 Μh)38
- B Loading Coil (DGPS) Parallel Connection (135-20 Μh)39
- C Loading Coil (NDB Low Power) Series Connection (2700-640 Μh)40
- D Loading Coil (NDB Low Power) Parallel Connection (639-50 Μh)41
- E Loading Coil (NDB High Power) Series Connection (1200-300 Μh)42
- F Loading Coil (NDB High Power) Parallel Connection (299-25 Μh)43
- Adjusting the Spark Gap44
Peak Antenna Voltage Versus Spark Gap Setting44
- A Flow Diagram – Adding Antenna Series Resistance (DGPS)47
- B Flow Diagram – Adding Antenna Series Resistance (NDB)48
T2 Taps Vs Series Resistance49
ATU-HP – Dimensional Information and Mounting Options51
- 3 Operating Instructions52
- Introduction52
  - Emergency Shutdown52
  - Controls and Indicators52
Part of ATU Control/Monitor PWB A1 (NAPC144A/01)53
ATU Control/Monitor PWB Controls and Indicators54
- 4 Testing and Adjustment58
- 6 Theory of Operation68
- 7 Parts Information77
Manufacturer's Index79
Wiring List - ATU-HP Automatic Antenna Tuning Unit97
- Wiring Lists Not Provided97
- 8 Wiring Information97
- Wiring Lists Provided97
Electrical Schematics99
- Structure of Schematics100
- Locating the Schematic Diagram(S)100
- Locating a Part/Assembly Identified on a Schematic100
- Reference Designations99
  - Unique Symbology99
- Type of Inputs/Outputs99
  - Identification of Schematic Diagrams99
Electrical Schematic - ATU-HP Automatic Antenna Tuning Unit (NAT40A100
Electrical Schematic - ATU Control/Monitor PWB (NAPC144A/01) (Sheet 1100
(Sheet 2103
10 Mechanical Drawings104
- Locating Assembly Detail Drawings104
- Content of Mechanical Drawings104
Assembly Detail -ATU-HP Automatic Antenna Tuning Unit (NAT40A104
Assembly Detail - ATU Control/Monitor PWB (NAPC144A/01104

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Nautel ATU-HP Specifications

General

Brand	Nautel
Model	ATU-HP
Category	Antenna
Language	English

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