DALLAS AVIONICS ENABLES CROSS-BAND COMMUNICATIONS


Years after 9/11, first responders still remember the coordination problems they experienced due to a lack of interoperable radio communications. Even today, interoperability between different first- responder agencies is not a given, which is why the Dallas Avionics (www.dallasavionics. com) multi-band radio offering cross-module repeating is worthy of note.


Based upon the Technisonic TDFM 9100 Series P25 FM Communications transceiver integrated with the Iridium satellite telephone, this RF package allows agencies to work together across radio and satellite bands. “The Technisonic TDFM 9100 can also act as a cross-band repeater,” said Scott Hurst, Dallas Avionics’ sales and technical support manager.


60 July/Aug 2018


“SAY YOU HAVE SOMEONE WHO IS ON 800 MHZ, AND YOU’VE GOT SOMEONE ELSE IN THE AIR WHO IS ON VHF. WE’RE NOW ABLE TO DO A PATCH BETWEEN THOSE GUYS,” HE SAID.


“So if law enforcement is doing a vehicle chase across multiple municipalities, they can now link everyone together. Should we ever have another 9/11-type disaster, the cross-band repeater could link first responders on different radio systems together if a repeater tower went down.


“Another big thing that’s come out, since Latitude Technologies has joined up with Technisonics, is the ability for helicopter operators to have push-to-talk (PTT) connections to other aircraft and ground stations in their talk group via radio and Iridium satellite, no matter where they are in the world,” Hurst added. The talk groups can be configured and altered as needed by the operators’ dispatch centers. “No one has to dial phone numbers anymore. The talk groups can be set up to do this automatically via PTT,” he said. “Helicopter operators now have access to true interoperable communications, no matter what the bands, platforms, and locations of the users.”


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