User's Manual
Table Of Contents
EX7100 Technical Manual - Module Descriptions
©1999 Exicom Technologies (1996) Ltd 7-28 Issue 3 - May 2001
7.6 UHF RF Power Amplifier Module Type 8048
7.6.1 General
The UHF RF Power Amplifier module is driven by a modulated signal on the required RF
frequency by the UHF Transmitter module Type 8053. Refer to Figure 7.9 “UHF RF
Connection Diagram” for details.
The Power Amplifier module maintains a constant gain of 50dB; with RF output power
being adjusted in the transmitter drive stage.
Various metering outputs, including forward power, reverse power and heat sink
temperature, are monitored by the Transmitter module (refer to Section 4.2.1).
The Power Amplifier is a wideband device covering 380-520MHz without manual
retuning.
To assist in cooling, dual fans and an enclosure are fitted over and around the PA
heatsink
Figure 7.17: UHF RF Power Amplifier Module in Place within an EX7100 Terminal