Spectra Logic TAC/COM SERIES - Manual (Page 12)

Tac/Com Control Head Manual SM06 Rev. 4.10
1.2.2.3
TE12/DTE12/DP12 DTMF Tone Generator/Keyboard Data Entry Unit
These devices can output DTMF signalling tones from either keyboard control or stored
sequences, and can serve as a direct keyboard data entry system for Tac/Com control
heads to change channels and frequencies. Consult NAT Ltd. for further information.
1.2.2.4
RA10 Remote Attenuator
This group of remote signal attenuators can be used to alter receive and transmit
performance and range under operator control. They allow compliance with restricted
transmit power regulations even when the radio itself cannot alter its transmit level.
They are used extensively in Europe for changing TX power to even lower levels than
the 1W output possible via Tac/Com transceivers directly, and to reduce RX
interference from closely spaced repeaters by reducing RX sensitivity.
1.2.2.5
Tactical Direction Finding (TDF) System
This 2-axis DF system allows both left-right and fore-aft sensing with a pictorial display.
This provides exceptional accuracy during search and rescue and remote tracking
operations, and also provides a positive indication of station passage (impossible with
single axis systems) to aid in exact target location.
1.2.2.6
CC250/450 Communications Controllers
The CC250/450 is a compact, easy to install communications controller. It is designed
to provide relay and/or simulcast operation for up to 4 transceivers. With these
functions, the aircraft can become an airborne repeater or a multi-frequency transmitting
platform. When used to its potential, the CC250/450 provides increased efficiency and
reduced workload for communication operations. Only the CC450-0V2 is currently in
production.
1.2.2.7
CTE12 Calquest  Headset Adapter
The CTE12-100 Calquest  Headset Adapter is designed to interface standard avionics
headsets to the Calquest  Cabin Network Unit (CNU). The headset adapter provides a
DTMF keypad, status indicators, ring chime control, ring/in-use annunciator control and
VOX squelch capability. The headset adapter can interface directly to a headset or a
standard avionics audio panel.
1.2.2.8
UT12 Universal Tone Encoder/Decoder
The UT12-000 is capable of encoding and decoding 5-tone CCIR tone sequences and
DTMF tones. It is compatible with the NAT Tac/Com system, and when used in
conjunction with a TH-series Tac/Com control head provides broader and easier control
over tones. The control head or transceiver can select, enable, disable and display
tones by communicating with the UT12-000 through a serial port.
Page 1-4 Jan 4, 2006
ENG-FORM: 800-0108.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.