User Manual

VHF 30W Power Amplifi er Instruction Manual
IM71-AMP3150-30
1
GENERAL
INFORMATION
INTRODUCTION
The MT-2/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-2/MT-3/MT-4 series of modules are
packaged in the compact Eurostandard
(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 +10 to +17 Volts DC which is
followed by 24 hours of continuous operation at
maximum rated power output.
When the VT-2/VT-4 transmitter is used as an
exciter for the VHF AMP-3 power amplifi er (PA)
module, it will provide an adjustable 10 to 30
Watts RF output over the 136 to 174 MHz VHF
Frequency range. When the VT-3 transmitter
is used as an exciter the RF output is only
adjustable from 20 to 30 Watts.
The VHF AMP-3 family contains two models
(AMP-3/140 and AMP-3/160) covering two
frequency bands 136 - 150 MHz and 150 - 174
MHz, respectively. The VHF AMP-3 power
amplifi er (PA) mates with either the MT-2 VHF
transmitter exciter module, the VT-3/1xx-Sx
transmitter exciter module or the VT-4x1xx-x0
transmitter exciter module.