Re:802.11ah Wi-Fi HaLOW: The 1 Kilometer WiFi Standard
by spacecadet on Monday January 08, 2024 @07:04AM
(#38910807)
Yes! Everyone should own a cantenna or 2, or 3... I built a 2ft diameter version during COVID for radio astronomy.
Re:802.11ah Wi-Fi HaLOW: The 1 Kilometer WiFi Standard
by petschge on Monday January 08, 2024 @09:08AM
(#38912089)
Can you tell more or link to a description? What where you able to observe?
Re:802.11ah Wi-Fi HaLOW: The 1 Kilometer WiFi Standard
by spacecadet on Monday January 08, 2024 @11:03AM
(#38913918)
I observed the "H-Line", https://en.m.wikipedia.org/wiki/Hydrogen_line
Made a GIF of the transit of the milky way using this software on a raspberry pi with some SDR/RF equipment. https://github.com/byggemandboesen/H-line-software
Unfortunately I only have some images on my phone right now, a git page is on my todo.
Re:802.11ah Wi-Fi HaLOW: The 1 Kilometer WiFi Standard
by GeorgeTirebiter on Monday January 08, 2024 @04:50PM
(#38918696)
Yes, be very careful to stay within lawful ERP. Some devices are illegal to use with external antennas. Of those that can connect an external antenna, the specs of acceptable antennas are provided with the equipment.
If you are in the USA, and you have the appropriate Amateur License (Tech class or higher), and you choose channels that are in the Ham Bands, Then it's perfectly fine to use these as ham radio links. https://www.arednmesh.org/
Aside from that, a much simpler antenna is this one, which can be built from a metal can + connector + wire stub. Directionality is likely a bit worse but I've used it successfully over a distance a bit lower than a kilometer. https://web.archive.org/web/20060516103023/http://www.saunal...