Air to Ground Crossband Repeater
A crossband repeater allows a radio in one frequency band to be cross connected with a second radio in a different frequency band. For this application that would be VHF AM to VHF FM or alternately UHF FM.
In the aviation industry, airplane radios frequencies use the 118 to 138 MHz VHF band while personnel on the ground use LMR radios that operate in either the VHF (138 to 174 MHz) or UHF (406 to 470 MHz) bands. A Codan air to ground cross band radio enables the cockpit and ground crews to communicate.
Cross banding VHF AM to VHF FM or UHF AM
Simplifies operations between ground services and aircraft
All informed network
Redundancy switching is available as an option
Radios are modular and can be configured into a variety of different systems in a standard 19” subrack
Robust construction and low current consumption
Extreme temperature tolerance (–30° to +60°C) enabling them to be deployed in some of the world’s harshest environments
Simple and effective means of allowing interoperability between different radio technologies and different agencies
Ground based fire fighting crews require direct communication to the supporting water bombing aircraft and helicopters. A cross band repeater allows the ground commander / air controller to not only communicate with his ground crews, but also with the aircraft supporting ground operations.
Search and Rescue
In a search and rescue operation a cross band repeater allows the ground commander / air controller to coordinate search operations between his ground crews and with the aircraft searching from above.
Fire departments can benefit from a cross band repeater in two ways. First they can cross band between their fire fighters (using UHF FM radios) and supporting helicopters (using VHF AM radios) that are being used in rescues from the tops of buildings. As well it is also possible to create tri-band cross banding to also allow the fire department to communicate with the police department (VHF FM radios).
The military will use cross banded radios for non-combatant applications such as coordinating movement of equipment in the fi eld or for fi ring range communications.
Police agencies will require direct communications with helicopters when coordinating the pursuit of a suspect.