Codan Radio Communications VT-30 User Manual

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VHF AMP-2 30 W Power Amplifi er Instruction Manual
IM71-AMP2150-30
1
GENERAL
 INFORMATION
INTRODUCTION
The MT-3 / MT-4 repeater system is a VHF / 
UHF radio system which is characterized by 
high performance and reliability under the most 
severe environmental conditions. The total 
system is designed to provide dependable, low 
maintenance performance, even in the most 
diffi cult circumstances.
The MT-3 / MT-4 series of modules are 
packaged in the compact Euro standard 
(5”h x 2.8”w x 7.5”d) housing, and are robustly 
designed for urban, remote or transportable 
applications. Voltage stress testing is done over 
the range of +11 to +16 VDC which is followed 
by 24 hours of continuous operation at maximum 
rated power output.
When the VT-3 / VT-4 transmitter is used as 
an exciter for the VHF AMP-2 power amplifi er 
(PA) module, it will provide an adjustable 20 to 
30 W RF output over the 136 - 174 MHz VHF 
frequency range.
The VHF AMP-2 family contains three models 
(AMP-2/145-30, AMP-2/155-30, AMP-2/170-30) 
covering three frequency bands 136 - 150 MHz, 
150 - 162 MHz and 162 - 174 MHz respectively. 
The VHF AMP-2 power amplifi er (PA) mates with 
either of the MT-3 / MT-4 VHF transmitter exciter 
modules (the VT-3 transmitter exciter module or 
the VT-4 transmitter exciter module).