Module Descriptions, RFL 9508D RF Section
7.1
POWER AMPLIFIER
Green LED
Figure 7-3. RFL 9508 Power Amplifier
7.1.1
DESCRIPTION
The Power Amplifier is mounted on the upper portion of the front cover of the RFL 9508D chassis.
The function of the Power Amplifier is to amplify the RF outputs of the RFL 9508D terminal before
these signals are passed to the line coupling equipment. The Power Amplifier develops an RF output of
50 Watts. A green LED is located on the left side of the Power Amplifier front panel as shown in
Figure 7-3. The LED is ON when the power amplifier is transmitting.
In those applications that require 100 Watts of RF output, two 50 Watt Power Amplifiers are added
together by the balance transformer on the Balance Board. The second 50 Watt Power Amplifier is
mounted in a 3U chassis directly above the RFL 9508D 6U chassis as shown in Figure 7-4. There must
be a 1U minimum space between these chassis for convection cooling. This additional 3U chassis will
contain a total of five modules as follows: a Power Amplifier, a Power Amplifier Power Supply, a
Mother Board, a Tx Filter and an External Amp Connection Board, as shown in Figure 7-5.
RFL 9508D UCC
RFL Electronics Inc.
December 1, 2010
7-5
(973) 334-3100