Wi-Fi HaLow is a low-power, long-range variant of Wi-Fi, based on the IEEE 802.11ah standard. It operates in the sub-GHz range (850-950 MHz), allowing it to pass through obstacles such as walls and buildings and connect a greater number of IoT devices over much greater distances.
In February, Morse Micro showcased the capabilities of HaLow Wi-Fi by achieving a 3-kilometer (1.8-mile) video call, setting a record for long-range connectivity using the 802.11ah standard. In its latest range testing, Morse Micro conducted testing in Joshua Tree National Park, a rural area known for its wide 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 its MM6108-EKH01 evaluation kit, which includes a Raspberry Pi 4 and an MM6108-MF08651 HaLow Wi-Fi reference module. The kit generates 21 dBm of power through a 1 dBi antenna, resulting in 22 dBm of total radiated power. The goal was to evaluate real-world Wi-Fi HaLow performance with standard equipment.
15.9 kilometers
Morse Micro calculated the theoretical maximum range of the system based on the IEEE 802.11ah standard, considering factors such as signal strength, antenna gain, and free space path loss. The estimated range was 15.9 kilometers. During field testing in Joshua Tree, the team achieved 2 Mbps UDP throughput at maximum range, proving that Wi-Fi HaLow can maintain long-distance connectivity while delivering significant data speeds.
However, HaLow is not just about distance. The energy-saving capabilities of the technology can significantly extend battery life. This could be a game-changer, especially for devices powered by button batteries, allowing them to run for months without needing to change them.
Writing about the latest milestone, the Morse Micro team said: “Our testing in Joshua Tree National Park proves that Morse Micro HaLow Wi-Fi isn't just about impressive numbers, it's about delivering real value in environments where it's most needed. needs. This test demonstrates that we can achieve the theoretical maximum range of Wi-Fi HaLow while still providing significant, usable performance. Whether you are working in remote rural areas or deploying IoT solutions across vast landscapes, Wi-Fi HaLow can operate consistently and reliably.”