ii
Receiver Layout and Connections . . . . . . . . . . .17
Installing the Receiver . . . . . . . . . . . . . . . . . . . .19
Receiver Placement 19
Environmental Considerations 19
Power Considerations 20
Grounding the Receiver 21
Connecting the Receiver To External Devices 21
RS-232 and RS-422 Operation 24
Installing the Antenna . . . . . . . . . . . . . . . . . . . .26
Antenna Placement to Optimize Reception 26
MGL-4 Combined GPS/Beacon Antenna 27
Routing and Securing the Antenna Cable 27
Magnetic Mount 29
Internal Signal Splitter . . . . . . . . . . . . . . . . . . . .30
3: MBX-4 Configuration and Operation . . 33
Front Display and Keypad . . . . . . . . . . . . . . . . .34
Lock Status 35
Factory Default Settings . . . . . . . . . . . . . . . . . . 36
Tune Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Automatic Beacon Search (ABS) Mode 37
Manual Mode 38
MBX-4 Display Modes . . . . . . . . . . . . . . . . . . . .39