Spectra Logic TAC/COM SERIES manual 12

Tac/Com Control Head Manual SM06 Rev. 4.10

1.2.2.3TE12/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.

1.2.2.4RA10 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.

1.2.2.5Tactical 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.

1.2.2.6CC250/450 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.

1.2.2.7CTE12 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.

1.2.2.8UT12 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

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