Unlock the potential of your Raspberry Pi with rpitx, a software-based RF transmitter that operates from 5 KHz to 1500 MHz. Perfect for educational use in radio frequency systems, it requires minimal setup and no extra hardware, aside from a filter. Dive into the world of RF experimentation while being mindful of legal transmission requirements.
rpitx is an innovative, general-purpose radio frequency transmitter designed specifically for Raspberry Pi, capable of transmitting frequencies ranging from 5 KHz to 1500 MHz. This remarkable software requires no additional hardware, aside from a filter to minimize interference. Ideal for educational purposes within the realm of RF systems, rpitx empowers users to explore and experiment with radio transmission. Note: Ensure compliance with local regulations when using this tool.
Key Features
- Wide Frequency Range: Transmits from 5 KHz to 1500 MHz.
- Ease of Use: Minimal hardware requirements for setup.
- Multiple Modulation Options: Experiment with various transmission types.
- Educational Tool: Great for learning and experimentation in RF transmission.
Getting Started
To start using rpitx, all you need to do is download the software. Clone the repository and follow the easy installation script provided.
Supported Raspberry Pi Models
| Raspberry Model | Status |
|---|---|
| Pizero | OK |
| PizeroW | OK |
| PiA+ | OK |
| PiB | Partial |
| PiB+ | OK |
| P2B | OK |
| Pi3B | OK |
| Pi3B+ | OK |
| Pi4 | In beta mode |
Simply connect a wire to GPIO 4 (Pin 7) on the GPIO header to function as the antenna. The optimal wire length varies depending on the transmission frequency, with a few centimeters being sufficient for local testing.
Explore Modulation Types
rpitx allows you to explore a variety of modulation techniques, including:
- Carrier Transmission: Generate stable frequencies for basic tests.
- Chirp Signals: Test frequency variations seamlessly.
- Spectrum Visualization: Analyze your transmission with SDR software.
- SSB Voice Modulation: Engage in classical Ham Radio communication.
- FM Broadcasting: Transmit FM signals with RDS capabilities.
- Slow Scan Television: Use audio modulation for image transmission.
- Digital Voice Modes: Utilize Freedv for sophisticated digital communication.
Combining with RTL-SDR
With the rtlmenu, you can integrate an RTL-SDR receiver dongle, allowing for simultaneous receiving and transmitting. This feature enhances experimental capabilities and adds depth to your exploration of RF technology.
Opportunities for Contribution
rpitx is a continually evolving project, encouraging users to delve into the code, manipulate parameters, and contribute to the documentation. Engage with the community via the forum at groups.io/rpitx to share ideas, seek assistance, and enhance your RF skills.
Developed by Evariste Courjaud F5OEO, rpitx combines open-source principles with the cutting-edge possibilities of Raspberry Pi, making it an essential tool for anyone interested in the field of radio frequency transmission.