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Introducing support for Robust Packet mode
I’m excited to announce support for Robust Packet, a proven method for sending and receiving messages over HF radio. If you’ve used traditional packet on VHF/UHF, you already know it’s reliable, widely available, and works great for local communication. However, on HF, where signals face challenges like fading, noise, and interference, packet can struggle to perform effectively.
That’s where Robust Packet, invented by SCS (the maker of PACTOR), makes a difference. Specifically designed for HF, Robust Packet uses advanced error correction to ensure your messages get through even in challenging conditions. It offers better reliability than traditional packet on HF, providing greater resistance to multi-path propagation and signal fading.
Due to the proprietary nature of the protocol and the low throughput caused by the now-lifted FCC 300-baud limitation on HF, the number of Winlink RMS stations supporting Robust Packet is currently limited. You can check the latest list of Robust Packet stations available in your region
here
.Â
While the current network footprint is modest, adding an HF mode to RadioMail that doesn’t require a computer was a key motivation for supporting this mode. Hopefully, renewed interest will drive further expansion of the network.
Fortunately, Oliver DL4KA, the creator of the PA500 amplifier, is making Robust Packet even more accessible. He has introduced the
LiNK500
TNC, an evolution of the Teensy-based TNC. The LiNK500 combines the functionality of a TNC and a sound card, while also adding the convenience of Bluetooth connectivity. This compact, standalone modem can be powered via USB, making it ideal for portable or off-grid use. Paired with RadioMail, the LiNK500 offers a seamless and efficient solution for Robust Packet communication on HF.
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