System block diagram, Functional description, 2 system block diagram – Comtech EF Data Ku-Band Power Amplifier with Optional L-Band User Manual
Page 16: 3 functional description

Outdoor Power Amplifier
Revision 0
Introduction
MN/ODPA.OM
1–2
The SSPA portion is line powered and provides an analog interface for fault status and
mute control.
The ODPA delivers up to 40 Watts, at the 1 dB compression point, to the transmit
waveguide flange. It provides a cost-effective and reliable replacement for TWT
amplifiers in Ku-Band terminals. Due to a small form factor, it is ideal for the
construction of small “flyaway” terminals, Intelsat earth stations, and hub earth stations
for small- to medium-size private networks or point-to-point links.
1.2 System
Block
Diagram
L-Band
10 MHz
14.0 - 14.5 GHz
PLL
X
Ku-BUC
40W - SSPA
AC
DC
10 MHz, DC, L-Band
Figure 1-2. System Block Diagram
1.3 Functional
Description
The ODPA consists of a chassis, power supply, fan assembly, Monitor and Control
Processor (MCP) and a Comtech EF Data SSPA module. The amplifier is designed using
a Comtech EF Data low loss combining technique and an MCP based temperature versus
gain compensation.