-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Serena Cantor wrote: > first, I consider wireless LAN, but I learn that wireless can't connect computers in different > rooms. From Wireless-howto: > > "The most important thing in Wireless communications is the line of > sight clear: you MUST SEE (with eyes or with a binocular) the antenna > from the other end or you can have (at most) a little tree between > them." > > Does bluetooth have this kind of restriction? Which technology can connect PCs in different rooms? Um. What kind of wireless connection are you looking for?
I am going to assume you are looking for personal wireless (like a laptop in the living room, or something). 802.11(a,b,g) based products work just fine between several rooms (or even floors) if you have good antennas and non-metal walls. Line-of-sight wireless is usually limited to Wireless WAN things, like point-to-point laser or long distance (3+ km) 802.11. Bluetooth uses the same frequency range as 802.11b and g, thus it gets interference from microwave ovens, etc (Anything on 2.4GHz frequency). Bluetooth is lower power, because it is considered a Personal Area Network. Correct me if I am wrong, but it is something like 30ft. It can also penetrate walls (just like 802.11a,b,g), but since it is lower power, it may not penetrate as well. Not a definitive description, but some cursory information: http://en.wikipedia.org/wiki/802.11 Hopefully this helps. Steve -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGspfh5cMXF54ytTIRAtc9AJ4syK3kEoI2gxtf2UonAi2of/Y14wCfUet7 vfGJiwYgPqw2dHJBiJh9hks= =0Hc3 -----END PGP SIGNATURE-----
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