homebrew hardware and WiFi

Wolfgang S. Rupprecht wolfgang.rupprecht+gnus200702 at gmail.com
Sun Feb 18 17:12:37 CET 2007

One other hope I have is that the RF chip designers will start making
more flexible radios.  Does a GSM/wifi/bluetooth/GPS phone really need
4 different RF chips and associated antennas and cabling?  Using
software-radio techniques it might be possible to combine some of the

GPS            1.5 Ghz
WIFI           2.4 Ghz
Bluetooth      2.4 Ghz
GSM-L          850 Mhz (to 900 Mhz)
GSM-H          1.8 Ghz (to 1.9Ghz)

Except for the GSM low band, all the frequencies are relatively close
to one another, certainly within a power of two of each other.  Even
with the GSM low band, it is still within a factor of 3.

Wolfgang S. Rupprecht                http://www.wsrcc.com/wolfgang/

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