Chapter 1. Introduction; Functional Description - Comtech EF Data CPA-050 Installation And Operation Manual

1.1 Introduction
The C-Band Solid-State High Power Amplifier (Figure 1-1), herein after referred to as,
"the CPA" is designed for use in communication systems, or in satellite uplink data
systems. The CPA operates over the RF input frequency range of 5.845 to 6.425 GHz.
The CPA is designed to be hard mounted in a standard 19-inch (48 cm) rack or cabinet,
or to be rack mounted using Comtech EF Data slide mechanisms provided with the CPA
to allow it to be serviced without its removal from the rack.
CPA-050, -100, -200
CPA-350
An AC power connector, with an On/Off switch, is located on the rear on the chassis. A
mating connector is supplied with the Solid-State Power Amplifier (SSPA). All operator
controls, indicators, and displays for local and remote operation as well as the RF Input
and Output sample test ports are located on the front panel of the CPA. Connectors for
the external interface connections are located on the rear of the CPA chassis.
1.2

Functional Description

The CPA consists of a chassis, power supplies, fan assembly, front panel assembly,
Monitor/Control Processor (MCP) and Comtech EF Data SSPA modules. The amplifier
is designed using a Comtech EF Data low-loss combining technique and an MCP based
temperature versus gain compensation.

Chapter 1. INTRODUCTION

Two internally mounted exhaust fans are mounted on the chassis
for cooling.
Four internally mounted exhaust fans are mounted on the chassis
for cooling.
1-1