User's Manual

418 Users manual Release 1.00 – NOVEMBER, 2011
Part #74468
Printed in USA 5
to the antenna relays, then to the antenna
connector.
The PIC processor in the CPU module
executes firmware to perform functions such
as check input power and frequency, enable
bias to the MOSFET amplifier, checking
SWR, current, output power and temperature
based on the inputs from the front panel
buttons, key in jack or data from the ACC 1
connector.
Cooling is achieved with the two internal fans
that are controlled by the CPU that is
monitoring the temperature of the MOSFET
heat sink.
Figure 2.1 418 Front Panel