Wi-Fi HaLow is a low-power, long-range Wi-Fi variant based on the IEEE 802.11ah standard. It operates in the subGHz range (850-950 MHz), allowing it to penetrate obstacles such as walls and buildings and connect a greater number of IoT devices over much greater distances.
In February, Morse Micro demonstrated the capabilities of Wi-Fi HaLow by making a 3 kilometer (1.8 mile) video call, setting a record for long-distance connectivity using the 802.11ah standard. In its latest range test, Morse Micro conducted tests in Joshua Tree National Park, a rural area known for its vast open spaces and minimal RF interference. This test successfully achieved an impressive range of 16 kilometers (10 miles), five times the previous distance.
For the experiment, Morse Micro used the MM6108-EKH01 evaluation kit, which includes a Raspberry Pi 4 and an MM6108-MF08651 Wi-Fi HaLow reference module. The kit delivers 21 dBm of power through a 1 dBi antenna, resulting in a total radiated power of 22 dBm. The goal was to assess the performance of Wi-Fi HaLow in the real world with standard equipment.
15.9 kilometers
Morse Micro calculated the theoretical maximum range of the system based on the IEEE 802.11ah standard, taking into account factors such as signal strength, antenna gain and free space path loss. The estimated range was 15.9 kilometers. During field testing at Joshua Tree, the team achieved a UDP throughput of 2 Mbps at maximum range, demonstrating that Wi-Fi HaLow can maintain connectivity over long distances while delivering meaningful data speeds.
However, HaLow is not just about distance. The technology’s energy-saving capabilities can significantly extend battery life. This could be a game changer, especially for devices that run on coin cell batteries, allowing them to run for months without needing to replace the battery.
The team at Morse Micro wrote about the latest milestone: “Our testing in Joshua Tree National Park shows that Morse Micro’s Wi-Fi HaLow is not just about impressive numbers, but about delivering real value in environments where you need it. need most. This test proves that we can achieve maximum theoretical Wi-Fi HaLow range and still provide significant and useful throughput. Whether you are working in remote, rural areas or deploying IoT solutions across vast landscapes, Wi-Fi HaLow can perform consistently and reliably.”