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Comment: Re:I don't think the cypher is the problem. (Score 1) 270

by sharpneli (#42970791) Attached to: US Stealth Jet Has To Talk To Allied Planes Over Unsecured Radio
UWB transmitters can be detected simply by correlating between multiple receivers. And if they're stationary you can even use the correlation delays to triangulate it's position. Basically if it emits energy and you have enough time/receivers you can find it.

Comment: Re:Why Win8? Let me explain... (Score 1) 403

by sharpneli (#41775123) Attached to: Microsoft Releases Windows 8
Remember that their cloud solution is somewhat questionable. If you enable the cloud sharing you risk getting your MS account banned if you:
"depicts nudity of any sort including full or partial human nudity or nudity in non-human forms such as cartoons, fantasy art or manga. advocates, or expresses pornography, obscenity, vulgarity, profanity, hatred, bigotry, racism, or gratuitous violence."

As an example if you're a manga artist and you use skydrive you just might find yourself banned losing access to everything. If you write a naughty story in Word with sync on you are violating their terms of service.

I am aware that it is most likely very rare that there would be massive bans. However the fact that they have already banned some users of Skydrive simply due to the content of their private files indicates that they will probably do so in the future.

Comment: Re:Business Opportunity (Score 1) 328

by sharpneli (#38828413) Attached to: Foreign Data Unsafe From US Patriot Act, Says American Law Firm
Accepting payment is going to be a hassle. You cannot accept any credit cards (I doubt there is any credit card in existence which does not work in USA yet works in other countries) nor can you use banks to save your money because they're almost certainly 'tainted' by VISA/MasterCard.

Comment: Re:Frequency? (Score 1) 154

by sharpneli (#38046336) Attached to: iOS App Acoustically Measures Distances Up To 25 Meters
I bet you can go to 25m too if you just average the signal enough (use multiple cycles). The chirp and averaging both are there just to increase the signal to noise ratio. I'd say the best way is just to use all the available bandwidth in the device (range resolution is determined by bandwidth), not limiting oneself to just audible or inaudible parts of the spectrum.

The only thing cheaper than hardware is talk.