Question T8D12
From subelement T8 - T8D
Which of the following best describes an amateur radio mesh network?
Why is this correct?
Amateur radio mesh networks use commercial Wi-Fi equipment with modified firmware to create data networks on amateur frequencies (2.4 GHz, 5.8 GHz, 10 GHz). The modified firmware removes commercial restrictions and adds amateur radio functionality. Options B, C, and D describe completely different systems: DMR is digital voice (not mesh networking), satellite TV hardware isn't used for terrestrial mesh networks, and internet linking protocols connect repeaters rather than create mesh topologies.
Memory tip
Look for 'modified firmware' as the key distinguisher—commercial equipment repurposed for amateur use. Mesh networks always involve multiple interconnected nodes that can relay data, unlike simple point-to-point or repeater-based systems.
Learn more
Projects like Broadband-Hamnet and AREDN (Amateur Radio Emergency Data Network) exemplify mesh networking in amateur service. Each station acts as both endpoint and relay, creating redundant paths for emergency communications. The mesh topology provides resilience—if one node fails, traffic routes around it. This decentralized approach supports high-speed data transmission for emergency management, making mesh networks valuable for disaster response when traditional infrastructure fails.
Think about it
Why do you think mesh networks use modified firmware instead of standard commercial Wi-Fi settings for amateur radio applications?