User's Manual

EX7100 Technical Manual - Module Descriptions
©1999 Exicom Technologies (1996) Ltd 7-15 Issue 3 - May 2001
7.4 UHF Transmitter Module Type 8053
7.4.1 General
The Transmitter module accepts data from the Modem Controller module Type 2966 (via
the Receiver module Type 8054). This data is filtered, modulated with a locally generated
carrier, amplified and then filtered again ready for amplification by the RF Power Amplifier
Module (PA) Type 8048
A microcontroller on the Type 8044 CPU sub-module provides control and metering for
the Transmitter, PA, Receiver and Receiver Front-End (FE). The microcontroller also
stores configuration information for the Transmitter, Receiver and RF PA modules.
Figure 7.9 below shows the connections between the RF modules and the
Modem/Controller module. This diagram should be referred to when reading the UHF RF
module sections following
Transmitter
Module
Receiver
Module
RF PA
Module
Receiver
Front End (FE)
Module
Terminal Rear Panel
Rx RF
Tx RF
Tx Drive
RF
Rx RF
Antenna
Tx RF out
W101
Metering
AGC, Control & Metering
PL102
SK102
SK101
J101
Duplex Filter
(Duplexer)
Figure 7.9: UHF RF Module Connection Block Diagram