rPitx - have your very own radio or TV station with a Raspberry Pi

[Cpt. Stud Beefpile]

GitHub - F5OEO/rpitx: RF transmitter for Raspberry Pi

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.

Has a Google Groups here https://groups.io/g/rpitx/topics

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.

 

[AmpleApricots]

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.

 

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Some, uh, 'interesting' use cases discussed on there.

rpitx@groups.io | Question RPITX maximum frequency transmittion with R3b+

groups.io

rpitx@groups.io | Question RPITX maximum frequency transmittion with …

archived 26 Nov 2022 03:09:32 UTC

archive.ph

 

[888Flux]

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.

https://www.youtube.com/watch?v=1zNWX85wa8Y

20W HF Transceiver based on Radioberry SDR

www.youtube.com

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.