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jjweird

join:2004-08-31
Ottawa, ON

[wireless] Channel 12 13 14 not enabled WHY? US/Canada..

why is channel 12 13 & 14 not enabled on wireless networking devices?
Do 2.4ghz phones use channel 12 13 14?
If i do get channel 12 13 14 going, will i get in shit with the GOV? Is it against the law? air polution!?


grcore
Challenge Accepted

join:2003-12-06
usa

Re: [wireless] Channel 12 13 14 not enabled WHY? U

Those frequencies are for Japan only. You would likely need to get Japaneese wireless drivers for your NIC for it to work.

US channels are 1-11 for 802.11b-g (FCC)

g

jjweird

join:2004-08-31
Ottawa, ON
but why did they do that tho? there must a lagit reason why


grcore
Challenge Accepted

join:2003-12-06
usa
reply to jjweird
Those frequencies are set for other uses by the FCC in the US.

There is only a limited amount of frequencies available, you have to draw the line somewhere.

g


joako
Premium
join:2000-09-07
/dev/null
kudos:6
reply to jjweird

Re: [wireless] Channel 12 13 14 not enabled WHY? US/Canada..

I think channel 12 is still fair game in the US.

IMO nothing will happen if you try to use any other frequencies, you can use them with a WRT54G(S) and the Sveasoft firmware, you just need a wireless card that will support those frequencies.
--
I'm joakimsen and I approve this message.»sveasoft.pifiu.com

BStrauss3

join:2001-12-07
Lewisville, TX
They're not legal for usage. If you interfere w/ somebody's licensed usage of their assigned spectrum and somebody complains, the FCC can be quite nasty.

-----Burton


joako
Premium
join:2000-09-07
/dev/null
kudos:6
reply to jjweird

Re: [wireless] Channel 12 13 14 not enabled WHY? U

Per FCC, 2.4ghz range is up to 2483.5mhz, while channel 11 is 2.462ghz, channel 14 is up to 2.484ghz, so yes, it is legal to use channels above 11, I do not know why they are not enabled.
--
I'm joakimsen and I approve this message.»sveasoft.pifiu.com

Bramfm

join:2004-06-08
NL
reply to grcore
Those frequencies are for Japan only. You would likely need to get Japaneese wireless drivers for your NIC for it to work.
No, channel 14 is reserved for Japan only, channels 12 and 13 can also be used in Europe.


DaDogs
Semper Vigilantis
Premium
join:2004-02-28
Deltaville, VA
reply to joako
said by joako:
Per FCC, 2.4ghz range is up to 2483.5mhz, while channel 11 is 2.462ghz, channel 14 is up to 2.484ghz, so yes, it is legal to use channels above 11, I do not know why they are not enabled.

There are three (3) non-overlapping channels in DSSS, ISM, 2.4 GHz. They are 1, 6, and 11. Since DSSS is wideband, the center channel frequency only specifies the MIDDLE of the signal. When a network is using channel 11, their signal extends from channel 9 thru channel 13.

IT IS THEREFORE ILLEGAL TO OPERATE WITH A CENTER FREQUENCY ABOVE CHANNEL ELEVEN IN THE USA.

If you do that, you risk standing out like a very sore thumb. The fine (last I checked) for deliberately operating illegally was five (5) thousand dollars per day.

You probably don't want to play around with the high channels.
--
»members.ozemail.com.au/~lbrash/msjokes/The early bird may get the worm, but the second mouse gets the cheese.