User's Manual Part 2

Power Amplifier Module - 108 -
®
Affinity LBD-200C-N1 Transmitter
Product Manual
system verses the number of faulted modules. A transmitter is deemed to be unrecoverable
when the output power has fallen by more than 6dB and a controlled shut down occurs.
The following table (given for example) shows analysis of the consequences of the failure of a
number (from 1 to n) of amplifier modules (theoretical values) for 50 to 400 watt RMS
transmitters.
Number of faulty power amplifiers
“n” number
of amplifiers
1 2 3 4 6 to 8
PA – 400 watts 12 -1.5dB -1.5dB -3.0dB -3.0dB -6.0dB
PA – 200 watts 6 -1.5dB -3.0dB -6.0dB -6.0dB
PA – 100 Watts 3 -3.0dB -6.0dB
PA – 50 Watts 2 -6.0dB
PA Module Layout
The PA Module segment consists of a Power Amplifier board, a Microcontroller board, a Power
Supply board, and a Front Panel board.