RPM3 UHF FM Radio Packet Modem is a low cost intelligent radio packet modem that enables a two way radio network/link to be simply implemented between a number of digital devices.
The RPM3 is a low‑cost, intelligent UHF radio packet modem that creates a two‑way wireless data link between digital devices. It connects via a simple serial interface and can be powered from 5 V or 3 V, making it easy to integrate with microcontrollers or PCs.
Key features include addressable point‑to‑point and multipoint modes, hardware flow control, remote configuration, and compliance with ETSI EN 300 220‑3, EN 301 489‑3, and FCC Part 15.249. The datasheet lists detailed electrical specifications, operating states, host interface pinouts, and configurable parameters.