Northern Airborne Technology NTX403 User Manual
SM64
NTX403 Series
Remote Mount
UHF-FM Transceiver
INSTALLATION AND OPERATION MANUAL
REV 4.00 April 19, 2005
Northern Airborne Technology Ltd.
1925 Kirschner Road
Kelowna, BC, Canada.
V1Y 4N7
Telephone (250) 763-2232
Facsimile (250) 762-3374
Copyright 2005 by Northern Airborne Technology
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
SM64 Rev. 4.00 NTX403 Series Remote Mount UHF-FM Transceiver Manual
Performed at factory
Periodically NAT will release manual amendments. In order to maintain the most
accurate and up to date manual these amendments should be carried out immediately
upon receipt and recorded on the following amendment record.
AMENDMENT RECORD
Amendment
Number
Note: Revision 4.00 is the first public release of this document
#1 Jan 7/08 2
Amendment
Date
Section(s)
Changed
Date
Entered
Entered By
Insert any Amendment Instruction sheets after this page.
Apr 19, 2005 Page ii
ENG-FORM: 820-0110.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
INSTALL_OPS
MANUAL AMENDMENT
Manual: SM64 (NTX403 Series Remote Mount UHF-FM Transceiver) Amendment #: 1
Document # SM64\Install_Ops\809-0001 Amendment Date: Jan 7, 2008
The purpose of this amendment is to update sections 2.3.4, 2.3.5 and 2.3.6.
Amendment Instructions:
1
2-1, 2-2, 2-3, 2-4 and 2-5 Rev 4.00 2-1, 2-2, 2-3, 2-4 and 2-5 Rev 4.00
2 Update the Amendment Record sheet at the front of the manual.
3 Insert this page into the manual after the Amendment Record sheet (page ii).
Manual Amendment ends after the following amended pages
Remove Pages Replace With Pages
Amendment # 1
Amendment # 1 Jan 7, 2008
ENG-FORM: 809-0109.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Page 1
SM64 Rev. 4.00 NTX403 Series Remote Mount UHF-FM Transceiver Manual
Table of Contents
Section Title Page
1 Description
1.1 Introduction 1-1
1.2 Purpose of Equipment 1-1
1.3 Features 1-1
1.4 Specifications 1-1
1.4.1 Electrical Specifications 1-1
1.4.2 General Specifications 1-2
1.4.3 Physical Specifications 1-3
1.4.4 Environmental Specifications 1-4
2 Installation
2.1 Introduction 2-1
2.2 Unpacking and Inspection 2-1
2.2.1 Warranty 2-1
2.3 Installation Procedures 2-1
2.3.1 Warnings 2-1
2.3.2 Cautions 2-2
2.3.3 Notes 2-2
2.3.4 Cable and Wiring 2-2
2.3.5 Antennas 2-3
2.3.6 Mechanical Mounting 2-3
2.3.7 Post-Installation Checks 2-4
2.3.8 Post-Installation EMI Test 2-4
2.4 Continued Airworthiness 2-5
2.5 Accessories Required But Not Supplied 2-5
2.6 Installation Drawings 2-5
3 Operation
3.1 Introduction 3-1
3.2 General 3-1
3.3 Operation Specifics 3-1
Apr 19, 2005 Page iii
ENG-FORM: 820-0110.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
SM64 Rev. 4.00 NTX403 Series Remote Mount UHF-FM Transceiver Manual
Section 1 Description
1.1 Introduction
This manual contains information on the NTX403 Remote Mount UHF-FM Transceiver.
All derivative products will be covered by manual supplements, which can be obtained
from NAT as required.
Information in this section consists of purpose of equipment, features and specifications.
1.2 Purpose of Equipment
The NTX403 is an UHF FM transceiver for operation in the 403 MHz to 512 MHz band.
The unit is remotely mounted using a 1/4 ATR tray and is operated via an RS-422 serial
bus interface using a TH-Series TAC/COM control head.
1.3 Features
The unit conforms to a 1/4 ATR tray size and is capable of receiving and transmitting
over 403.000 to 511.99375 MHz.
1.4 Specifications
1.4.1 Electrical Specifications
Power Supply +27.5 Vdc Power
Voltage: Nominal +27.5 Vdc
Maximum 30.3 Vdc
Minimum 22.0 Vdc
Emergency 18.0 Vdc
Current: Receive (Nom.) 500 mA @ +27.5 Vdc
Transmit (Max.) 2.5 A @ +27.5 Vdc
Input Signals
Mic Input Audio signal, 100 mVrms
Push to Talk Active ground signal, 15 mA max
Power On/Off Active ground signal, 20 mA max
Serial Data In RS-422 data from control head
Apr 19, 2005 Page 1-1
ENG-FORM: 800-0107.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
NTX403 Series Remote Mount UHF-FM Transceiver Manual SM64 Rev. 4.00
Output Signals
Headset Audio 100 mW Nominal, 250 mW max into 600 Ω
AUX Receive Audio 300 mVrms nominal, not tone controlled
RT Installed Low Output (Ground)
Main SQ Disable Out Active low output, open collector (20 mA max)
Serial Data Out RS-422 data to control head
Bi-directional Signals
RF Input / Output 50 Ω nominal antenna impedance
1.4.2 General Specifications
Frequency Range 403.000 to 511.99375 MHz
RF Impedance 50 Ω nominal
Modulation FM
Rated System Deviation 2.5 kHz (N
Rated Audio Input Level 100 mVrms nominal
Duty Cycle 20% (1 min. TX, 4 min. RX)
Sub-audible Tones 38 standard CTCSS tones and all DCS codes
Remote Interface RS-422 serial data
Number of channels 128, simplex or semi-duplex
Channel Increments 6.25 / 10 kHz
Scan Rate 10-20 channels/sec. All channels may be in
1.4.2.1 Transmitter
RF Output Power 10 W or 1 W ± 1dB
Frequency Stability ±2.5 ppm
Conducted Spurious ≤-13 dBm (50 µW)
Adjacent Channel Power ≥54 dBc (N
arrowband), 5 kHz (Wideband)
scan list.
arrowband), ≥70 dBc (Wideband)
Modulation Limiting 2.5 kHz (N
arrowband), 5 kHz (Wideband)
Microphone Impedance 150 Ω ±20%
AF Characteristic -6 dB/octave +1/-3 dB pre-emphasis (EIA STD)
Page 1-2 Apr 19, 2005
ENG-FORM: 800-0107.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Loading...