Technical Manual

GUARDIAN VHF 110W MOBILE v
4.3.5
Radio Power Up ................................................................................................................................. 4-2
4.3.6 Choose a Channel............................................................................................................................... 4-2
4.3.7 Transmit a Voice Message ................................................................................................................. 4-2
4.3.8 Receive a Voice Message................................................................................................................... 4-2
4.3.9 Programming and Bypass Mode ........................................................................................................ 4-2
CHAPTER 5: RADIO SET AND ACCESSORIES ....................................................................................... 5-1
5.1 SYSTEM DESCRIPTION ................................................................................................................................5-1
5.1.1 Mobile Radio...................................................................................................................................... 5-1
5.1.2 Antenna .............................................................................................................................................. 5-1
5.1.3 Guardian PC Programmer .................................................................................................................. 5-1
5.1.4 Cloning Cable..................................................................................................................................... 5-2
5.2 CONTROLS, INDICATORS, AND CONNECTORS ............................................................................................. 5-2
5.2.1 Controls.............................................................................................................................................. 5-2
5.2.2 Indicators............................................................................................................................................ 5-3
5.2.3 Connectors ......................................................................................................................................... 5-4
5.3 TRANSCEIVER CHARACTERISTICS ............................................................................................................... 5-4
5.3.1 Transmitter Characteristics ................................................................................................................ 5-4
5.3.2 Receiver Characteristics..................................................................................................................... 5-5
5.4 COMMUNICATION SECURITY ...................................................................................................................... 5-5
5.4.1 Algorithms ......................................................................................................................................... 5-5
5.4.2 Keyfill ................................................................................................................................................ 5-5
5.4.3 Zeroize ............................................................................................................................................... 5-6
CHAPTER 6: SERVICING THE RADIO...................................................................................................... 6-1
6.1 GENERAL .................................................................................................................................................... 6-1
6.2 SELF-TEST AT POWER UP ........................................................................................................................... 6-1
6.3 CAUTION..................................................................................................................................................... 6-1
CHAPTER 7: TROUBLESHOOTING........................................................................................................... 7-1
7.1 INTRODUCTION ........................................................................................................................................... 7-1
7.2 RADIO FUNCTIONAL TESTS......................................................................................................................... 7-1
7.2.1 Power-On Test ................................................................................................................................... 7-1
7.2.2 Buttons and Switches Test ................................................................................................................. 7-1
7.2.3 Transmit Test ..................................................................................................................................... 7-1
7.2.4 Receive Test....................................................................................................................................... 7-1
7.2.5 Audio Test.......................................................................................................................................... 7-1
CHAPTER 8: DEFINITIONS ......................................................................................................................... 8-1
CHAPTER 9: SIGNAL TONES...................................................................................................................... 9-1
CHAPTER 10: INTERFACE ...............................................................ERROR! BOOKMARK NOT DEFINED.
10.1 ACCESSORY CONNECTOR PINS AND FUNCTIONS....................................................................................... 10-1
CHAPTER 11: SCHEMATICS....................................................................................................................... 11-1
FIGURES
Figure 2-1: Guardian Interconnect Diagram .............................................................................................................2-3
Figure 2-2: Guardian Control Logic ......................................................................................................................... 2-4
Figure 2-3: RECM Power Supply .............................................................................................................................2-5
Figure 2-4: Guardian Keypad Board.......................................................................................................................2-17
Figure 3-1: Guardian Block Diagram........................................................................................................................3-1
Figure 3-2: Transmit DSP Chain...............................................................................................................................3-7
Figure 3-3: Receive DSP Chain ................................................................................................................................3-8
Figure 3-4: Controller Software..............................................................................................................................3-16