HNAP4PlutoSDR

This is the implementation of the HAMNET Access Protocol for Adalm Pluto SDRs. It uses a 200 kHz duplex channel in the 70cm band to transmit IP traffic.

Main Features:

• OFDM based system with 40 subcarriers (4kHz subcarrier spacing)
• DL @ 439.7MHz / UL @ 434.9MHz (can be reconfigured)
• Basestation - Client topology, supports up to 14 connected clients
• up to 400kbps data-rate and <150ms RTT at the application layer

Quickstart

Visit manual.hnap.de for an installation and usage guide

Available material for further reading:

• Master thesis by Lukas Ostendorf: Design of a Radio Communications Protocol for HAMNET Access in the 70cm Amateur Radio Band
• Presentation: HNAP - The HAMNET Access Protocol
• Article about HNAP (deutsch)
• Talk about HNAP at the Software Defined Radio Academy 2020