HRN 195: DV System Comparison

The Charlotte NC Digital Radio Group is kinda nuts for the DV systems. They don’t pick favorites – they put them all up. Their D-STAR system is older and more evolved (multiple sites on 144, 440 and 1200), but they’ve added DMR/MotoTRBO in a big way, and recently installed one of the Yaesu C4FM “Fusion” repeaters (though they’re not “fusing” it – they run it digital only). They’ve got an NXDN repeater on the bench. Only P-25 is missing.

In this talk from the Charlotte Hamfest, Roland Kraatz W9HPX presents the research he’s done on D-STAR, DMR and Fusion. No on-the-air comparisons (see Episode 161 for that). This is a slide show that compares operational capability and some tech specs.

We’re a few weeks away from Yaesu’s North America release of WIRES-X, the Internet linking system for Fusion, so Roland only has a few details on that based on manuals.

Here are links to some of the resources Roland talks about: – The Charlotte Digital Radio Groups site… – Roland’s slide show PDF… – KI4ZD’s slide show on Fusion


Author: CVRC

Crescenta Valley Radio Club is an organization over half a century old. Our members are amateur radio operators who share interests in radio and service to our community. Members help new members starting the hobby as well as helping other members with technical and operational problems of getting on the air. We keep ourselves up to date with the technological changes by inviting expert speakers to our meetings. CVRC closely supports GEARS (Glendale Emergency Auxiliary Radio). Many members are in both organizations and have provided communications for an emergency at Glendale Memorial Hospital, and with Cruise Night, the Montrose Christmas Parade, and various local themed running events. We meet once a month on the second Thursday of the month at USC Verdugo Hills Hospital at 7:00PM. Every Sunday we hold two nets. On our 445.680 repeater, we hold the No Chit Chat net at 7:50PM, and at 8:00PM, we switch to our 146.025 repeater for the Whats Going On Net. Both repeaters are located on top of Mount Thom and share use the city's antenna tower. Their power is backed up by both batteries and an emergency generator. We have several annual events. In June, we participate in the National Field Day by setting up several stations in Verdugo Park and operating completely "off the grid". Every August we have a barbecue in Crescenta Valley Park with a Fox Hunt activity where the members try to locate a hidden transmitter. When December comes around we come together for a traditional holiday dinner.

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