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Codan NGT 2010 RF User Manual

Codan NGT 2010 RF
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NGT Transceiver System
Technical Service Manual
No part of this manual may be reproduced, transcribed, translated into any language or
transmitted in any form whatsoever without the prior written consent of Codan Limited.
© Copyright 1999, 2002, 2003, 2006 Codan Limited
NGT
®
, Easitalk
®
and CALM
®
are registered trademarks of Codan Limited. Other brand,
product and company names mentioned in this document are trademarks or registered
trademarks of their respective holders.
Codan part number 15-02063-EN Issue 5, October 2006
The English version takes precedence over any translated versions.
CODAN

Table of Contents

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Codan NGT 2010 RF Specifications

General IconGeneral
Weight4.3 kg (9.5 lb)
Dimensions240 mm (W) x 80 mm (H) x 280 mm (D) (9.4 in x 3.1 in x 11 in)
Channels100
Emission ModesJ3E
Frequency Range1.6 to 30 MHz in 100 Hz steps
Supply Voltage13.8 V DC nominal (10.8 to 16 V DC)
Power Supply13.8 V DC nominal (10.8 to 16 V DC)

Summary

About this manual

Standards and Icons

Explains the typeface standards and icons used in the manual for emphasis, cross-references, and warnings.

Compliance

Regulatory Directives

Lists standards and requirements for NGT Transceivers, Power Amplifiers, and Data Modems regarding R&TTE Directive.

Safety Notices

Covers radiation safety guidelines and electromagnetic compatibility requirements for optimal transceiver performance.

FCC and IC Compliance

Details FCC Part 90 and Part 15 certification, including compliance statements and measures for preventing interference.

Maintenance

NGT Transceivers

NGT Overview and Specifications

Provides a general overview and specifications for NGT transceivers, including pin connections for various units.

NGT Technical Description (2010)

Offers a detailed technical description of the operation and circuit function of the 2010 RF Unit.

NGT Technical Description (2011/2012)

Provides a detailed technical description of the operation and circuit function of the 2011/2012 RF Unit.

NGT Checks and Adjustments

Details checks, adjustments, and alignments for the transceiver, including required test equipment.

High Power Systems Overview

High Power Overview and Specifications

Describes Codan power amplifier systems for NGT transceivers, including basic layouts and specifications.

High Power Technical Description

Provides detailed technical descriptions of LED indications, power amplifiers, and external high-power systems.

High Power Fault Finding and Adjustments

Covers general information, fault finding, and adjustments for power amplifiers and external systems.

NGT Remote Interface (NRI)

NRI Technical Description

Details the NRI's technical aspects, including the User Connect PCB, Microcontroller PCB, and Vocoder PCB.

NRI Fault Finding

Covers fault finding procedures for the NRI, including PCB replacement, firmware upgrades, and error messages.

3012 - Overview and Specifications

3012 - Technical Description

Digital Signal Processor and CoDec

Explains the role of the DSP and CoDec in data modulation, demodulation, and interfacing with the transceiver.

3012 - Fault Finding

Basic Fault Finding

Provides a table for basic fault finding of the 3012 data modem based on conditions like off lights or strange characters.

8571 - Overview and Specifications

8571 - Brief Description

Receive Audio Path

Explains the receive audio path, including notch filters, amplifiers, and connections to the modem.

Transmit Audio Path

Details the transmit audio path, including filters, amplifiers, and connections to the split-site interface.

Microprocessor Control and Signalling

Explains how microprocessors control the 8571, including the bus structure and signalling methods.

8571 - Fault Finding

Fault Finding

Discusses general fault finding for the split-site remote control system, covering types of faults and voltage measurements.

No Signalling

Details fault finding procedures for situations with no signalling, covering the master 8571, slave 8571, and transceiver.

No Reception, with Signalling

Guides fault finding for no reception with signalling, suggesting checks of links and shared paths.

High Power—Overview and Specifications

Specifications

Lists figures for specifications, typical values, and measurement conditions for power amplifiers.

High Power—Brief Description

Power Amplifier (3061/3062)

Describes the operation and PCB details of the 3061/3062 power amplifier systems.

High Power—Technical Description

3061/3062 Power Amplifiers

Details the supply voltages for the 3061/3062 power amplifiers, including control and power supply PCBs.

High Power—Fault Finding and Adjustments

Fault Finding the Power Amplifiers (3061/3062)

Details the meaning of front panel LED indicators for fault detection in the 3061/3062 power amplifiers.

Adjusting the Power Amplifiers (3061/3062)

Provides procedures for adjusting the driver bias and PA bias for the 3061/3062 power amplifiers.

Adjusting the External High-Power Amplifier

Guides on adjusting the output power and ALC control of external high-power amplifiers.

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