Northern Airborne Technology NTA01-001 - Manual (Page 7)

SM71 Rev. 4.10 NTA01-001 Motorola Series Radio Adapter Manual
Section 1 Description
1.1 Introduction
This manual contains information on the NTA01-001 Motorola Series Radio Adapter.
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.
Note: The NTA01-001 Motorola Series Radio Adapter has been designed for use with
the remote-mounted version of Motorola’s Astro and XTL-series radios. If there
is any question about the suitability of the NTA01-001 for a specific Motorola
radio, contact the Product Support department at NAT Ltd.
1.2 Purpose of Equipment
The NTA01-001 is a remote-mounted adapter unit, specifically designed to incorporate
the remote-mounted version of Motorola’s Astro and XTL-series radios into an aircraft
environment. It provides all required interface functions to integrate a car/motorcycle
radio into an aircraft environment, such as power conversion, mic excitation, sidetone
generation, impedance matching and level conversion.
1.3 Features
The NTA01-001 is a tray-mounted unit that accepts remote-mounted versions of the
Motorola radio (7 inches long maximum and with a 15-watt transmit maximum radio).
The preferred method of control of the Motorola radio is via a TH-Series Tac/Com
Control head with a suitable radio interface installed in it.
The NTA01-001 provides voltage conversion from +28 to +13 Vdc, mic bias for
amplified microphones, a remote on/off line (supplied by the control head), artificial
sidetone during transmission, and level and impedance matching of the radio’s audio
signals to the aircraft audio system.
Programming of the Motorola Astro radio is accomplished with a PC and a Motorola RIB or
SRIB box and Motorola RSS programming software via a 15-pin connector on the front of
the NTA01-001. This feature is not available with the XTL-series radios.
Feb 6, 2006 Page 1-1
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