module
RTL-SDR dongle
by Various (e.g. RTL-SDR Blog)
Low-cost USB receive-only SDR based on the RTL2832U; about 2 MHz of usable bandwidth.
Specifications
| Bandwidth | about 2 MHz |
| Mode | Receive only |
Projects Using RTL-SDR dongle2
Illustration
ESP32ESP32-P4
Open-source ESP32-P4 firmware that turns the Semtech LR2021 LoRa chip into an SDR: P25 voice, FM, pagers and aircraft on a handheld, no PC.
Intermediate·Code
6 parts listed
Illustration
OTHER
A passive, standalone C receiver that watches every Meshtastic channel an SDR can see at once, decodes the traffic and, with the channel key, decrypts it. It ships in DragonOS and runs on a cheap RTL-SDR dongle; a wider SDR such as a HackRF One hears more of the band.
Advanced·Code
3 parts listed
Where to Buy
Stores we've checked for this part
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