Technical Manual

iv GUARDIAN VHF 110W MOBILE
3.1.5
Self-Test on Power-Up....................................................................................................................... 3-2
3.1.6 Flash Software Upgrades ................................................................................................................... 3-2
3.1.7 Voice Coder/Decoder (VOCODER).................................................................................................. 3-2
3.2 RADIO CONTROL SOFTWARE ...................................................................................................................... 3-2
3.2.1 Audio Control .................................................................................................................................... 3-2
3.2.2 DSP Control Software........................................................................................................................ 3-2
3.2.3 Transceiver Board .............................................................................................................................. 3-3
3.2.4 DC Power Control.............................................................................................................................. 3-5
3.2.5 Monitoring ......................................................................................................................................... 3-5
3.2.6 Radio Control Drivers ........................................................................................................................ 3-5
3.3 DIGITAL SIGNAL PROCESSING..................................................................................................................... 3-6
3.3.1 DSP Transmit Chain .......................................................................................................................... 3-6
3.3.2 DSP Receive Chain............................................................................................................................ 3-8
3.3.3 DSP Software................................................................................................................................... 3-11
3.4 KEYPAD MPU SOFTWARE ........................................................................................................................ 3-11
3.4.1 Overview.......................................................................................................................................... 3-11
3.4.2 General............................................................................................................................................. 3-11
3.4.3 Keypad Scanning ............................................................................................................................. 3-11
3.4.4 Push-to-Talk (PTT) Input................................................................................................................. 3-11
3.4.5 Switch Input ..................................................................................................................................... 3-11
3.4.6 LED Output...................................................................................................................................... 3-11
3.4.7 Backlight Control............................................................................................................................. 3-11
3.4.8 Serial Interface ................................................................................................................................. 3-11
3.5 DATA INTERFACE...................................................................................................................................... 3-12
3.5.1 CAI Data Interface ........................................................................................................................... 3-12
3.5.2 Synchronous Serial Data Interface................................................................................................... 3-12
3.5.3 CAI Data Link Layer ....................................................................................................................... 3-12
3.5.4 Transmit Physical Link Layer.......................................................................................................... 3-13
3.5.5 Receive Physical Link Layer............................................................................................................ 3-14
3.5.6 DES Encryption ............................................................................................................................... 3-14
3.5.7 Host Interface................................................................................................................................... 3-15
3.5.8 Flash Interface.................................................................................................................................. 3-15
3.5.9 Paging............................................................................................................................................... 3-15
3.5.10 Hardware Control............................................................................................................................. 3-16
3.6 CONTROLLER SOFTWARE.......................................................................................................................... 3-16
3.6.1 Overview.......................................................................................................................................... 3-16
3.6.2 Environment..................................................................................................................................... 3-16
3.6.3 Radio Store....................................................................................................................................... 3-18
3.6.4 Program/Fill/Control Interface ......................................................................................................... 3-19
3.7 USER INTERFACE ...................................................................................................................................... 3-20
3.7.1 Display ............................................................................................................................................. 3-20
3.7.2 Optional DTMF Microphone ........................................................................................................... 3-20
CHAPTER 4: INSTALLATION, ADJUSTMENT, AND OPERATION .................................................... 4-1
4.1 RADIO CONFIGURATION ............................................................................................................................. 4-1
4.1.1 Channels............................................................................................................................................. 4-1
4.1.2 Zones.................................................................................................................................................. 4-1
4.1.3 Banks.................................................................................................................................................. 4-1
4.2 INSTALLATION AND ADJUSTMENT .............................................................................................................. 4-1
4.2.1 Hardware............................................................................................................................................ 4-1
4.2.2 Software ............................................................................................................................................. 4-1
4.3 OPERATING PROCEDURES ........................................................................................................................... 4-1
4.3.1 Connect the Power Source ................................................................................................................. 4-1
4.3.2 Connect the Antenna.......................................................................................................................... 4-1
4.3.3 Optional External Speaker ................................................................................................................. 4-1
4.3.4 Radio Programming ........................................................................................................................... 4-1