| AE/LZB 119 1902 R1A |
TABLE OF CONTENTS |
|
SPECIFICATIONS | 4 |
GENERAL | 4 |
RECEIVE | 5 |
TRANSMIT | 5 |
DESCRIPTION | 6 |
MECHANICAL | 7 |
OPTIONS AND ACCESSORIES | 7 |
OPERATION | 8 |
CONTROLS | 8 |
KEYPAD SCAN/SYSTEM FUNCTIONS | 9 |
CIRCUIT ANALYSIS | 10 |
SOFTWARE | 10 |
RECEIVER | 10 |
RX Front End | 10 |
Rx Back End | 11 |
TRANSMITTER | 13 |
Transmit Frequency Generation | 13 |
TX/Converter/Modulator (N150) | 13 |
SAW Transmit Band Pass Filter 1 | 14 |
MMIC Buffer Amplifier | 14 |
SAW Transmit Band Pass Filter 2 | 14 |
Power Amplifier (N101) | 14 |
Directional Coupler (W100) | 14 |
Power Sensor Circuit | 14 |
Power Control Buffer | 15 |
Transmit | 15 |
Transmit Modulation | 15 |
SYNTHESIZER | 15 |
Dual Synthesizers (N203) | 15 |
Bilateral Switch (N201) | 15 |
Main Voltage Controlled Oscillator (U200) | 15 |
Main Synthesizer (N203) | 16 |
Auxiliary Synthesizer (N203) | 16 |
Reference Oscillator (U201) | 16 |
DC POWER DISTRIBUTION | 16 |
Synthesizer Regulator (N290) | 16 |
Receiver Regulator (N490) | 16 |
Transmit Regulator (N190) | 16 |
Tx Switch (V192) | 17 |
B+ Switch (V191) | 17 |
Analog Regulator (N900) | 17 |
17 | |
LCD NEGATIVE BIAS GENERATOR | 18 |
SERVICE | 18 |
EQUIPMENT REQUIRED | 18 |
PROGRAMMING | 18 |
Personality Programming | 18 |
Flash Programming | 19 |
Programming Mode | 19 |
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