Ever wondered what it takes to build a compact, high-performance 6-meter repeater using modern SDR technology? Take a peek behind the scenes of the ON0VDS repeater project — a powerful collaboration between ON6VDS, ON6URE, and the team behind ON0VDS. This project combines flexibility, digital precision, and remote control into a future-ready repeater system.
A Modern Take on Repeater Design
Built for performance and remote reliability, the ON0VDS 6-meter repeater integrates several cutting-edge modules into one clean, modular setup. Perfect for harsh environments or locations that are difficult to reach, this system showcases the strength of SDR and embedded computing in amateur radio today.
Thanks to the teamwork between ON6VDS, who leads the local repeater initiative, and ON6URE, founder of RF.Guru and specialist in RF design, this build sets a new standard for community-driven, high-tech ham radio infrastructure.
Let’s break down the core components powering ON0VDS:
What’s Inside?
Receiver Front-End:
- High-performance 6M Band-Pass Filter ensures only the wanted signals get through.
- Followed by a Low Noise Amplifier (LNA) optimized for 50 MHz–1 GHz.
- An RTL-SDR handles the digital signal sampling with great sensitivity.
Look at those shoulders ;)_
Digital Signal Control:
- A Raspberry Pi acts as the digital brain — running the signal processing software, managing repeater logic, and interfacing with the TX system.
Transmitter Chain:
- The TRXrptr HAT takes command, controlling an external transceiver used for the transmit path.
- Split RX/TX design ensures low latency and high flexibility in frequency planning.
Remote Ready:
- Fully manageable over IP, this repeater is tailored for unattended operation with full diagnostics and remote access features.
Why It Matters
Whether you're diving into your first SDR project or looking to modernize your club’s infrastructure, this build shows what’s possible when passionate operators and RF innovators join forces.
Small in footprint, big in capabilities — this is the future of repeater building!
🔍 Curious about the components? Check them out below:
- TRXrptr HAT – Full TX control from your Pi
- RTL-SDR Compatible LNA (50MHz–1GHz)
- 6M Band Pass Filter (30–70 MHz)
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