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Monthly Archives: June 2008

Motofone F3 (North American version)

I purchased a north American version of the Motofone F3 (Manufactured in Brazil), which operates on the 850/1900 Mhz GSM bands (used almost exclusively in North America) for $34 including S/H from dakmart.com. After plugging my SIM card in the phone it reported that it was on the AT-T network. My original Motofone F3 from [...]

Free wireless at the Gamboa rainforest resort at the panama canal (Panama)

I was given the following 3 day access code for the wireless internet at the Gamboa Rain forest resort (at the panama canal):
username: 3day136
password: 6856670
However, the internet was turned on for everybody when I was there, so I didn't need to use it.  If you find yourself at the Gamboa resort, feel free to use [...]

Compressive Sampling: Beating the Nyquist Limit for certain signals

Compressive Sampling is a new field of sensing theory that sidesteps the traditional Nyquist sampling limit. The Nyquist limit is an information theory result that says to perfectly capture a signal which is bandwidth limited at a certain frequency, X, you must take 2 times X samples per second.  So for example, if you want [...]