Power Amplifier Input/Output Connections; Figure 10: Power Amplifier Module - Motorola ASTRO 25 GTR 8000 Manual

The power amplifier also performs functions related to the fan module, including reporting of the fan
module status and supplying power to the fan power bus.

Figure 10: Power Amplifier Module

The power amplifier is comprised of six internal modules:
• Core Board
• Converter Board
• Driver Amplifier Board
• Final Amplifier Board
• Distribution Board
• Output Circuitry
2.1.2.1

Power Amplifier Input/Output Connections

There are three electrical connection assemblies on the power amplifier:
• RF output (front QN "quick-N" connector) on the front of the power amplifier module
NOTICE: This is cabled to the N-type female bulkhead connection at the rear of the base
radio housing.
• DC power supply/control signal (backplane connection)
• RF input/feedback (backplane connection).
Chapter 2: GTR 8000 Base Radio Theory of Operation
MN003286A01-E
65