Ever hear that squawk from the Motorola radios used by commercial and public service like law enforcement or emergency services personnel? My friend KF6ERB asked me about that subject one time and it made me scratch my head.

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I've been modulating on digital for a while on different modes/protocols such as C4FM, DMR, D*Star, even on AllStarLink/Echolink. I also own a few repeaters on backyard and mountain-top sites, plus also maintain a multi-mode network. However, I have never made a repeater from the ground up!

So with this next project, I the main goal is to make a multimode-capable repeater out of two Motorola CDM1250s with an MMDVM STM32 board and other components.

This is an ongoing build so you'll see dates and progress as it goes!

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