Long-range Wi-Fi routers can also be implemented to function in unconventional scenarios. The same technologies that deliver Internet to wireless devices can also be used to transfer video footage from surveillance cameras to a computer, connect telephone calls between neighbors, or support the performance of burglar alarm systems. The possibilities are virtually endless.
What Contributes to Long Range? There are a couple of factors that influence a router’s ability to deliver data over long distances. The following technical specifications should be considered when looking for the best
long-range Wi-Fi router:
Frequency. A frequency is a waveband at which radio signals are transmitted. In the case of Wi-Fi, the most common frequency bands are 2.4GHz and 5GHz. However, Wi-Fi can function on other frequencies as well.
2.4GHz antennas deliver greater range, but 5GHz antennas function on significantly less-crowded channels and achieve greater throughput. Heavy-duty and long-range Wi-Fi routers typically utilize dual-band antennas to provide the best of both worlds.
Antenna Gain. Antenna gain is the ability to boost signal power by concentrating radio frequency energy in a specific direction or pattern. It complements the existing Wi-Fi router’s transmit power and significantly increases the range.
Conventional home Wi-Fi routers average at 2–4dBi, while long-range Wi-Fi routers deliver 5–9dBi gain. There are more powerful options and the general rule with antenna gain is
the bigger—the better. However, having too much gain also causes greater noise levels, so sensibility is advised.
Transmit power is also a factor in increasing Wi-Fi router range. However, users should keep in mind that each country applies different transmit power and EIRP restrictions, so the adjustment of these values should be exercised with care and respect to the legal limits imposed by the national legislature.