About This Documentation; Configurations; Keying Transmitters With External Ptt; Keying Transmitters With Phantom Ptt - NORTHROP GRUMMAN T6MC User Documentation

About this Documentation

This documentation is split into seven topics. The content of each topic is:
Topic 1. Introduction
Topic 2. Specification
Topic 3. Operation
Topic 4. Installation
Topic 5. Maintenance
Topic 6. Parts List
Topic 7. Figures

Configurations

The controller can be configured as detailed below.

Keying Transmitters with External PTT

Up to four controllers can be connected in parallel and used as the remote operating position(s) for radios
using external PTT. The controlled radios can be a transmitter/receiver pair or transceiver, or a main and
standby configuration. A 3-wire PTT, transmit audio plus ground, and a 2-wire receive audio plus ground
connection is required as shown in
The controller's intercom facility must not be used in these configurations.

Keying Transmitters with Phantom PTT

Up to four controllers can be connected in parallel and used as the remote operating position(s) for radios
using phantom keying. The controlled radios can be a transmitter/receiver pair or transceiver, or a main
and standby configuration. A 2-wire transmit audio plus ground and a 2-wire receive audio plus ground
connection is required as shown in
lines to provide phantom PTT.
An intercom facility is available from the controller's front panel. This facility allows an operator to speak
to other controllers without keying the transmitter.
Park Air T6MC Controller
(This topic). Gives a brief overview of the controller and configurations
with details of the available models, options and accessories.
Gives the specification of the controller.
Details the front and rear panel controls and indicators. Provides the
procedures to set up and operate the controller.
Details the procedures necessary to successfully install and configure
the controller. Shows how a controller connects to a radio, a single
controller connects to multiple radios and multiple controllers connect
to multiple radios.
Gives a technical description of the controller and details typical
operating conditions to assist fault finding.
Detailed parts listing of the controller.
Shows installation arrangements, enclosure fitting details, rack mount
details, circuit diagram and PCB layout diagram.
Fig 7-1.
Fig 7-2. The keying potential is superimposed on the transmit audio
Page 1-3
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Introduction