Monday, August 2, 2004
Bluetooth Broadcast Boundaries gets Bigger
Posted by Jonathon Watkins in "OFF-TOPIC" @ 09:00 AM
Bluetooth; how far is the maximum transmission distance? I'm sure you guys have heard about the official classes and ranges:
However, it looks like the W?BIC! crowd is out in force again. This time it looks like the boys at WiFi-Toys have been trying to create their own Class 0 device:
"On a sunny afternoon in California, author Mike Outmesguine and John Hering and James Burgess from Flexilis ventured outside to experiment with a high-gain antenna connected to a Class 1 Bluetooth adapter kit from Bluedriving.com. The plan was to connect to a Class 3 cell phone and attempt to transfer a file over the air at an extreme range of 1 kilometer (about 3,300 feet)."
I think the Sony-Ericsson T610 is actually a class 2 device, but even so, their (successful) attempt to FTP a file to a laptop over a kilometre away is very impressive. Even more so, when you consider that neither device was modified and that the high-gain antenna was an off-the-shelf component. Nice use of an afternoon there. :wink:
- Power Class 1: is designed for long range (~100m) devices
- Power Class 2: for ordinary range devices (~10m) devices
- Power Class 3: for short range devices (~10cm) devices
However, it looks like the W?BIC! crowd is out in force again. This time it looks like the boys at WiFi-Toys have been trying to create their own Class 0 device:
"On a sunny afternoon in California, author Mike Outmesguine and John Hering and James Burgess from Flexilis ventured outside to experiment with a high-gain antenna connected to a Class 1 Bluetooth adapter kit from Bluedriving.com. The plan was to connect to a Class 3 cell phone and attempt to transfer a file over the air at an extreme range of 1 kilometer (about 3,300 feet)."
I think the Sony-Ericsson T610 is actually a class 2 device, but even so, their (successful) attempt to FTP a file to a laptop over a kilometre away is very impressive. Even more so, when you consider that neither device was modified and that the high-gain antenna was an off-the-shelf component. Nice use of an afternoon there. :wink:
