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this is probobly the most stupidest question but y doesnt bluetooth use the same type of frequency as cordless house fones do ?

then u could have further range


[ This Message was edited by: p900 lover on 2004-05-02 16:38 ]
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Posted: 2004-05-02 17:35:07
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ok may be not the same frequency but sumthing like it

e.g

radio controled cars
walky talkys
home phones
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Posted: 2004-05-02 17:39:42
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It does use the same frequency, 2.4ghz.
Most new cordless phones are 2.4ghz, so are 802.11g/b wireless networks.
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Posted: 2004-05-02 17:54:29
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http://electronics.howstuffworks.com/bluetooth5.htm

this will answer your question.
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Posted: 2004-05-02 18:04:19
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so y can i use my cordless house fone in the garden (like 70 meters) with no problems and my bt headset will only wort around a 5/7 meeter distance?
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Posted: 2004-05-02 18:05:32
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the answer is in the post above
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Posted: 2004-05-02 18:10:41
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oh i c

thanks a lot

one more thing how cums some devices hav a 100 meter bluetooth and others only have 10 meters?
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Posted: 2004-05-02 18:14:41
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Bluetooth is not defined by the frequency it transmits, but by the small transmit power 1mW. Hence the short range <10m. There are no other bluetooth devices with longer ranges. Bluetooth limits itself to 10m. That is one way to avoid interference with other devices, that use the same frequencies.
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Posted: 2004-05-02 18:22:21
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and depends on the bluetooth version and the type of device.
bluetooth type 1.1b is most common and is used in phones to get up to 10m. but some adapters can make it go up to 50m
the new type 1.2 will be the new best thing, it will be implaned in phones so it can go up to 100m (the first phone with this is the Z1010 but it can only go up to 20m to save energy).

a few years ago on cebit a company also showed that it could get bluetooth up as for as 1km! but thats more something for networks.
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Posted: 2004-05-02 18:24:31
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JaymoFish
Quote:It does use the same frequency, 2.4ghz.
Most new cordless phones are 2.4ghz, so are 802.11g/b wireless networks.
Also Video / Audio senders and Microwaves use 2.4ghz...

The band is rather crowded... Especially akward in city centers as bluetooth (epecially on NK7650s) has a habit of wiping out WiFi , rather annoying when 15 wi-fi networks try to share the 12 channels (of which only three could operate without overlapping)

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Posted: 2004-05-02 21:26:52
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