GQRX Using an RTLSDR to Receive Temperature Sensor Data

“Monitoring 433.9 MHz – picking up plenty of local weather temperature sensors and the likes. Using a newsky dvb-t tuner and a modified version of gqrx that supports rtl sdr. Antenne is a 2m/70cm in my attic.” — trylleklovn

RTLSDR as a APCO Project 25 receiver

The MachineGeek overt at DangerousPrototypes has posted yet another great update on a RTL-SDR project.

Balint Seeber has done it again! In this video he shows how to take the RTL-SDR dongle and use it in conjunction with the open source OP25 project to successfully demodulate APCO Project 25 (P25) digital radio voice communications. P25 is a term used to refer to a modulation system used by many public safety agencies for digital radio transmission purposes.

Link: RTL-SDR APCO Project 25 (P25) receiver

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