Reliable coverage is paramount in a professional communications network. Better network coverage brings better public services. Providing network coverage everywhere, all the time, for the small numbers of users that are typically using a TETRA network is certainly a tall order. But this is just what the TB3 TETRA base station was designed to achieve. The TB3 can improve quality of service, provide more coverage, or achieve a combination of the two.

TETRA TB3 base station's most outstanding features are:

• Superior and versatile coverage solutions
• Intelligent Radio Resource Management
• Enhanced fallback
• Standalone mode
• Automatic Main Control Channel change-over
• Air to Ground cell range up to 83 km
• Modular design for redundant base station main units
• Jamming detection
• Dynamic air encryption with two simultaneous encryption algo-rithms
• Adaptive random access window for congestion control
• Additional signalling channel for Automatic Vehicle Location use
• Load directed roaming
• Dynamic channel allocation between voice or packet data
• Optional Global Positioning System (GPS)
• TETRA Enhanced Data Service (TEDS)
• Secondary Control Channel
• E1 or IP transmission supported

O&M functions

• Remote and local configuration. Remote and local alarm handling.
• Remote and local SW downloading
• Remote and local test services. Eight remote outputs.

Available Frequency bands

• Rx: 350 -356MHz and Tx: 360 – 366MHz
• Rx: 380 – 390MHz and Tx: 390 – 400MHz
• Rx: 410 – 420MHz and Tx: 420 – 430MHz
• Rx: 450 – 460MHz and Tx: 460 – 470MHz
• Rx: 806 - 824MHz and Tx: 851 – 869MHz