Wi-Fi and Bluetooth both occupy a section of the 2.4 GHz ISM band that is 83 MHz-wide. Bluetooth uses Frequency Hopping Spread Spectrum (FHSS) and is allowed to hop between 79 different 1 MHz-wide channels in this band.
Wi-Fi uses Direct Sequence Spread Spectrum (DSSS) instead of FHSS. Its carrier does not hop or change frequency and remains centered on one channel that is 22 MHz-wide. While there is room for 11 overlapping channels in this 83 MHz-wide band, there is only room for three non-overlapping channels. Thus there can be no more than three different Wi-Fi networks operating in close proximity to one another.
When a Bluetooth radio and a Wi-Fi radio are operating in the same area, the single 22 MHz-wide Wi-Fi channel occupies the same frequency space as 22 of the 79 Bluetooth channels which are 1 MHz wide. When a Bluetooth transmission occurs on a frequency that lies within the frequency space occupied by a simultaneous Wi-Fi transmission, some level of interference can occur, depending on the strength of each signal.

---------- Post added at 12:53 PM ---------- Previous post was at 12:52 PM ----------

in simple words...
Both wireless protocols operate in the 2.40- to 2.48-GHz ISM (industrial, scientific, and medical) RF band. WiFi uses one of 12 overlapping channels of 22-MHz bandwidth each, and Bluetooth frequency-hops among 79 1-MHz channels evenly spaced across the band. As a result, no matter which channel of WiFi is in use, a risk exists of interference between the two that will result in lowered data throughput for both.

And don't forget your microwave! If you're making some popcorn in your microwave, while talking on bluetooth hands-free via skype connected to Wi-Fi - don't be supprised if your popcorn starts to talk ;)
Ok. Seriously, some microwave oven uses waves of same frequency. Isn't it bit too much for this band?

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Originally Posted by mpolanski

And don't forget your microwave! If you're making some popcorn in your microwave, while talking on bluetooth hands-free via skype connected to Wi-Fi - don't be supprised if your popcorn starts to talk ;)
Ok. Seriously, some microwave oven uses waves of same frequency. Isn't it bit too much for this band?

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I know that problem with the microwave oven when I want to make popcorn while I am talking on bluetooth hands-free via skype connected to Wi-Fi ;)

Guys,

Quit spamming this dev thread, if you have nothing constructive to post then do not bother at all!!

Originally Posted by colossus

Guys,

Quit spamming this dev thread, if you have nothing constructive to post then do not bother at all!!

Sorry, colossus. I was just reporting some bugs with some applications.
Greetings

Originally Posted by colossus

Guys,

Quit spamming this dev thread, if you have nothing constructive to post then do not bother at all!!

If you don't read my post literally, it actually is not a spam. What I meant is that 2.4 band is very occupied, so if one want to complain about bluetooth or wi-fi connection should first check what is going on there. If someone is at work, and there is 20 different bluetooth devices, and 15 wi-fi networks, and someone is using (for example) microwave 3 meters away... well... don't expect anything to work correctly on those frequencies.

Your post is not specific to this rom, the bt/wifi issue is a known issue and has nothing to do with standing near a microwave.

Now get your popcorn and take it over to the thread in general if you want to discuss it further!!

Here are little report by me:

- rom - nothing to complain
- camera - can take photos in vga\wvga
- camcorder - can record only in low quality to be watchable
- flashlight, well, every time turn on and stay on when taking picture with camera so i put in on auto.
- focus does not work
- about other is early to say, use rom only about 2hrs
- great progress\job FXP, thanks

cheers
skorvy

FXP;22757596]x10 camera is an #$%^&*(

we have 8mp snaphot
buggy for now 4/5 image ok

for fxp109 i think.take the time and reed the thread before post.


''delete this if i disturb the thread''.

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the camera doesn't work on CM7.2.0

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can somebody help me with the camera... i got green shot for it.. after install cm7.2.0