Ok, but technically, it would actually be more like LIDAR, since we use visible light rather than radio waves
Comment on Sign language is just radio communication but on another frequency
mykl@lemmy.world 11 months ago
Really, radio communication is about creating and transmitting those radio waves. Sign language relies on reflected light waves so it’s actually a form of RADAR 😀
Lux@lemmy.blahaj.zone 11 months ago
jonatan83@lemmy.fmhy.ml 11 months ago
Alas, RADAR relies on transmitting and then reading the reflected waves.
astrsk@kbin.social 11 months ago
RADAR: RA(dio) D(etection) A(nd) R(anging)
It doesn’t rely on self transmission. It can but you can detect and range other sources without generating it yourself.
jonatan83@lemmy.fmhy.ml 11 months ago
That’s just what the acronym means, it doesn’t describes the actual process. I don’t think there is a single RADAR that doesn’t have a transmitter. At that point it would just be a… radio.
skillissuer@lemmy.world 11 months ago
unless you’re communicating by waving glowsticks, it’s passive radar
undyingarchie@lemmy.world 11 months ago
I’ll have what you and OP are having.