User's Manual

iv
8/30/0268P81095E05-C
Custom Receiver IC Circuitry page 4............................................................
Address Decode and A/D Converter Circuitry page 5..............................................
Voltage Regulator Circuitry page 5..............................................................
RECEIVER MODULE (900 MHz) 68P81091E92.........................................
Description page 1....................................................................
General Description page 1....................................................................
Overview of Circuitry page 1...................................................................
Controls, Indicators, and Inputs/Outputs page 2........................................
Functional Theory of Operation page 3.................................................
Synthesizer and VCO Circuitry page 3...........................................................
Receiver Front End Circuitry page 4.............................................................
Custom Receiver IC Circuitry page 4............................................................
Address Decode and A/D Converter Circuitry page 5..............................................
Voltage Regulator Circuitry page 5..............................................................
TRANSMITTER CIRCUITRY
EXCITER BOARD (VHF, UHF, 800/900 MHz) 68P81086E24..............................
Description page 1....................................................................
General Description page 1....................................................................
Overview of Circuitry page 1...................................................................
Controls, Indicators, and Inputs/Outputs page 2........................................
Functional Theory of Operation page 3.................................................
Synthesizer and VCO Circuitry page 3...........................................................
RF Switch Circuitry page 4.....................................................................
Microprocessor Circuitry page 4................................................................
TX Power Control Circuitry page 5..............................................................
VHF POWER AMPLIFIER MODULE (25W/125W R1 & R2) 68P81086E23....................
Description page 1....................................................................
General Description page 1....................................................................
Overview of Circuitry page 1...................................................................
Controls, Indicators, and Inputs/Outputs page 2........................................
Functional Theory of Operation page 3.................................................
RF Signal Path page 3........................................................................
Output Power Control page 3..................................................................
Sense and Detect Circuitry page 4..............................................................
Cooling Fans Control Circuitry page 6...........................................................
UHF POWER AMPLIFIER MODULE (R0/110W; R1 & R2/25W; R1-3/110W; R4/100W) 68P81088E44
Description page 1....................................................................
General Description page 1....................................................................
Overview of Circuitry page 1...................................................................
Controls, Indicators, and Inputs/Outputs page 2........................................
Functional Theory of Operation page 3.................................................
RF Signal Path page 3........................................................................
Output Power Control page 3..................................................................
Sense and Detect Circuitry page 4..............................................................
Cooling Fans Control Circuitry page 6...........................................................