Ask HN: Why Radiowaves are used instead of Lasers in WISP?

Posted by projectfunded on Wednesday January 16, 2019 @01:34AM
from the ask-hn dept.

Light has frequency in terahertz and can be modulated faster.

Why we use radio waves for 5g/WiFi and all data transmission rather than employing laser arrays which automatically align themselves.

( 2 comments | on HN )

Re:Ask HN: Why Radiowaves are used instead of Lasers in WISP? by greenyoda on Wednesday January 16, 2019 @02:09AM (#18918857)

Light can't pass through walls, people or other opaque objects. So you'd need an unobstructed line of sight between the transmitter and receiver.

[ Parent | on HN ]

Re:Ask HN: Why Radiowaves are used instead of Lasers in WISP? by zunzun on Wednesday January 16, 2019 @08:33AM (#18920650)

Fog?

[ Parent | on HN ]