Datatrak

Automatic Vehicle Location (AVL)

• Position calculated every second
• Transmission rate configurable before installation
• Alarm transmissions are approximately at 2-second intervals for 30 minutes

Key Features:

• Automatic Vehicle Location (AVL)

• AVL message content

• Short data protocol

AVL Message Content

• Position Report - WGS84 Latitude/Longitude
• Speed - up to 120kph (4 bits)
• Direction - 3 bits
• Status Data - 8 bits

Short Data Protocol

• 48 bits of data in place of position report
• Alarm transmissions at approximately 4-second intervals for 34 seconds