Although I have not yet assembled a wearable computer, my job requires that= = I regularly use three cellular data providers and one satellite data = provider with my laptop. I love my job! My favorite cellular solution is a Sprint CF 2031 - often referred to as a = YISO card. It is actually a compact flash card with PCMCIA sleeve. It cam= e= with drivers for my WinCE PDA and my Win2K laptop. Although = bandwidthplace.com reports a communication speed of 120k, I estimate that I= = am actually receiving somewhere between 50k and 80k. It is definitely = =66aster than my home dial-up connection. The down side is battery life. My most interesting cellular solution involves a T-Mobile Ericsson T68 cell= = phone tethered to both my PDA and laptop via Bluetooth. I use Socket's = compact flash bluetooth card with my PDA. I use 3COM's PCMCIA bluetooth = card with my laptop. Although bandwidthplace.com reports communication = speeds between 100k and 120k, I estimate that I actually receive somewhere = between 40k and 80k. Unfortunately, the bluetooth drivers don't react well= = to "standby mode" and battery life is once again an issue. =20 I also use a Motorola T720i with T-Mobile. It performs about as well as th= e= Ericsson - but lacks bluetooth. I tether it to my laptop via a USB cable.= = =20 I use a Motorola T720c with Verizon. It connects to my laptop via USB. It= = is solid as a rock, although a little bit slower than the Sprint and = T-Mobile solutions. Verizon clearly has the best coverage in my market - = Salt Lake City. Surprisingly, the T720 performed better than either of the= = Sierra Wireless PCMCIA cards I evaluated on Verizon's network. =20 Atlhough AT&T also supports the Ericsson T68 bluetooth phone, their data = speeds are still quite weak. I periodically test their solutions, but I = they don't have an attractive solution in my market yet. My satellite solution is an Iridium Motorola 9505 which connects to the = serial port on my laptop. It is big, heavy, expensive and slow. I estimat= e= that I receive between 1k and 10k of actual bandwidth. I use it for batch= = processes because it is too slow for anything interactive. While travellin= g= I can use a magnetic antenna on the roof of the vehicle. When inside our = building I can physically cable to an external antenna. Neither antenna is= = shaped like a dish. I don't need to "aim" the antenna. The antenna simply= = needs to see a large portion of the sky. I have to be pretty desparate to = use the satellite option. It is my last choice. However, there are times = when it is my only option. Each of my cellular providers offers unlimited service plans for = approximately $100 per month. I currently subscribe to 40 meg plans with = both Sprint and T-Mobile. I have a 10 meg plan with Verizon. Interestingly, the fast services tend to charge per megabyte. The slower = services tend to charge by the minute. One exception is Verizon which = allows the option of sharing a pool of minutes between voice and data. -Bryan >>>6/2/2003 9:44:18 PM >>> As far as cellular internat access is concerned, you can goto ETSI website and search for a manual there. I think they will have some tutor that can help you. Vinay.V -----Original Message----- =46rom: Jennifer Pellinen [mailto:
]=20 Sent: Monday, June 02, 2003 9:23 PM To:
=20 Subject: wireless internet acess Does anyone know of any wireless acess that is decent quality/decent cost that would work well on a wearable system. When I build a wearable I intend to have a WiFi card on it, but I would like to have internet acess everywhere not just near WiFi acess points. Is satilite internet practical for a wearable? What about Cellular internet acess? __________________________________ Do you Yahoo!? Yahoo! Calendar - Free online calendar with sync to Outlook(TM). http://calendar.yahoo.com=20 -- Subscription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" to
=20 Wear-Hard Mailing List Archive (searchable): http://wearables.blu.org=20 Please, *PLEASE* don't subscribe through a forward/expander/false domain ---------------------------------------------------------------------------= --- This message may contain confidential information, and is intended only for= = the use of the individual(s) to whom it is addressed. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D -- Subscription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" to
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