Hacker News Reader

> Also very surprised voyager is using 2.3ghz, that's crazy saturated on earth due to wifi

Wifi didn't exist when Voyager was launched...

But the band was free for use, wasn't it? (Obviously not crowded)

Available for microwaves since 1947, intentional emission came later in the 80s.

The ISM band is 2.4-2.5 GHz. Voyager at 2.3Ghz is outside the band.