New Lighting Technology To Wipe Out Wi-Fi Access?

Richard Evans writes "Focus on Broadband Wireless Internet Access has an article [cached by google ] on the potentially catastrophic interference to Communications Users Of The 2.4 GHz Band e.g. Wi-Fi, DECT and Bluetooth by a new lighting technology called RF Lighting."

Comments

Something is missing

[Spazmania]

The article is rather light on details about how exactly the lights are going to interfere.

2.4ghz is special in that its the resonance frequency of the water molecule. That's why microwave ovens operate at that frequency: vibration = heat.

So how exactly are these folks going to sell a product which emits high wattages at that frequency? Sitting under one would be like sticking your head in a microwave.

Answer: They're not stupid enough to sell a product that is like sticking your head in a microwave. Some critical facts are missing here.

The wireless stuff isn't particularly dangerous since its emitting at such a low power: well under 1 watt where the typical microwave emits at up to 1000 watts. And the spread spectrum technology does a good enough job of ignoring noise that the technology works despite the leakage from those ovens. If the wireless stuff does OK in the presence of leakage from 1000 watt Microwave Ovens, it'll do fine in the presence of other safe 2.4ghz devices.