RF transmitter for Raspberry Pi. Contribute to F5OEO/rpitx development by creating an account on GitHub.
github.com
rpitx is a general radio frequency transmitter for Raspberry Pi which doesn't require any other hardware unless a filter to avoid interference. It can handle frequencies from 5 KHz up to 1500 MHz.
Very interesting to have your own portable radio/tv station, although the software is rather bare bones at the moment and only transmits in a few modes.
Be careful, depending on where you live using any frequency outside the public use ones is illegal and if it's found out it's not a peanuts formality thing either, especially if you ended up disrupting something.
Rpitx is great for certain niche applications where you need to interact with the RF spectrum but a more comprehensive solution was the Radioberry expansion board that turned the Raspberry Pi into a full-fledged SDR transceiver.
An alternative to Rpitx for a affordable and modern SDR transceiver for the HF bands is the Red Pitaya SDRlab platform. It's based on an FPGA and has two 16-bit independent ADC's. It can cover the entire HF band simultaneously and each ADC has two separate RX and TX channels.
For VHF, UHF and 2.4 GHz / Wireless applications the HackRF is another platform that is versatile for higher frequency RF applications. It's completely open source hardware too. I used it in a project to create a standalone VHF transceiver with 50 watts of output for the 2 meter band.
I am currently working on a project using the Red Pitaya platform that is a 2x2 MIMO transceiver for the HF bands to allow for up to 192 kbps data transmission using a series of coherent antennas.
The future of open communication is going to be reliant on independently owned infrastructure. It is the only way forward out of this mess of a overcentralized, fragile, and complex Internet that is entirely owned by corporate and government interests.
github.com
