High power—Overview and specifications
208 NGT Transceiver System Technical Service Manual
Overview
There are two solutions offered by Codan for power amplifiers used with NGT
transceiver systems and an antenna. These provide additional RF output power for a
fixed station. These solutions are:
• the Codan 500 W Power Amplifier 3061 and 1 kW Power Amplifier 3062 systems,
and
• the Datron TW500 and TW1000 power amplifiers, which require Codan’s High-
power PA and Antenna Controller (HPAC) module and ALC adaptor module to
interface with the vendor equipment
The basic layouts of these systems are indicated below.
These amplifier systems can be enabled or disabled via the NGT handset.
Figure 1: Basic layout of a 3061/3062 high-power system
Figure 2: Basic layout of an HPAC module and an ALC adaptor module with
vendor equipment
RF In
TCVR
RF Out
ATU
Tuner
(optional)
NGT transceiver
system
Power supply
Transceiver
supply
3061/3062
power amplifier
High-power PA and
antenna controller
ALC adaptor
TCVR
NGT transceiver
system
Power Amp
ATU
Tuner
(optional)
RF In
RF Out
Transceiver
supply
TW500/TW1000
power amplifier and
power supply