[minhmeoke]

If you are using Linux-based infrastructure, this list contains some recommended Wifi chipsets. https://github.com/morrownr/USB-WiFi/blob/main/home/The_Shor... In particular, ALFA AWUS036ACHM has a combination of long range and low cost (~$39 USD).

Ubiquity UAP AC LR also has long-range access points with up to 183 meters range for ~$109 USD: https://store.ui.com/products/unifi-ac-lr

If you are more ambitious, you can deploy an OpenWRT BATMAN-based mesh network: https://openwrt.org/docs/guide-user/network/wifi/mesh/batman

I recommend using something that supports OpenWRT out of the box, such as GL-iNet Mango Mini Router GL-MT300N-V2 (~$20 USD refurbished) https://openwrt.org/toh/gl.inet/gl-mt300n_v2 https://store.gl-inet.com/products/certified-refurbished-pro...

Please only use this information for humanitarian/civilian purposes and not for military objectives. Thank you!