7 ms·

Wlan is not using frequency hopping or am I mistaken?

• _joel 3y ago
  Yes, otherwise interference would be a right pain (or render it unusable completely). This happens for many wireless systems (like bluetooth too).
• BenjiWiebe 3y ago
  Bluetooth uses frequency hopping. WiFi and GPS do not.
• evgen 3y ago
  No, but an early wireless midpoint between nascent wifi deployments and really shitty WAP in a world before data over cellular networks was Ricochet Networks. Frequency hopping over the public bands of the era (900MHz mostly I think) it was able to give decent wireless internet in the mid 90s to those of us living in supported areas of Silicon Valley. When laptops were a new thing and public wifi still years away it was fun ‘work remote’ in some corner of a coffeeshop when everyone else was chained to office desktops.
  • tgv 3y ago
    Unfortunately, mother of a shitty predecessor of wifi doesn't quite have the same ring to it.
• epcoa 3y ago
  It was, briefly. Long before Wi-Fi was a household name when 802.11 (no b) was just standardized for industrial use there was an FHSS PHY. I think Proxim or one of the other defunct industrial data capture companies sold it into the 2000s. In any case there’s a lot of overlapping commonality in the information theory and engineering of frequency hopping and more modern SS.