gemini5362 said:
I am curious about your use of the sprint card for your internet interface. As I have said in an earlier post that is the one internet technology I have not had much experience with. How many computers do you run off of that router and what kind of bandwidth do you get. Have you ever tried going to somewhere like pctools.com and doing a check to see what the download and upload speed on your computer is ?
I have four computers linked to the router, 3 via Cat 5 cable and one via 802.11g wireless. There is no difference in the throughput when I use the card in the router or plug it directly into my laptop. I am using the Merlin S720 card and the Linksys WRT54G3G-ST router. Here's a page with links to both pieces of hardware -
Sprint Mobile Broadband Solutions - as well as a brief description of their network.
Speed depends on several factors. EVDO is faster than 1xRTT, and Rev A EVDO is faster than Rev 0 EVDO. The closer you are to a Sprint tower, the faster it is, and the number of people sharing a tower connection also impacts the speed. Dallas is currently Rev 0 (although I understand that Verizon is now Rev A here), so the upload speed is limited to a theoretical maximum of 150kbps (I think) and download of 2.5Mbps. Rev A ups the download a little to 3.1Mbps, but will dramatically increase the maximum upload speed to 1.8Mbps (a 12x improvement). But no one will advertise those speeds, because it will be nearly impossible to achieve.
I am about half a mile from a Sprint tower, and get in the range of 1.0-2.0 Mbps down and 100-125kbps up. The upload speed isn't a problem for our applications, but once Rev A rolls out, I anticipate that should jump up to the neighborhood of 500kbps. Another big plus for Rev A is that latency will be drastically improved. Again, that's not a problem for me, but it might be for gamers or VOIP users.
Before I switched to EVDO, I was sharing a T1 line in this building with another tenant, and I have to say that I can't tell the difference except when I go to upload a big file. Also, we don't experience any (perceptible) slowdowns when multiple computers in the office are accessing the network at the same time.
Here's the site I use to test the speed
Speedtest.net - The Global Broadband Speed Test and I have attached a screen shot showing some recent tests to different servers. The Sprint connection is "always on", but probably goes dormant when not being used. We don't even power down the card/router except on weekends. As far as I can tell, we haven't had any downtime in the four months since I switched. As I mentioned earlier, Sprint has no bandwidth usage limitations, and actually encourages sharing the connection by marketing the router.
edit: Eddie, to get this back on topic, here's a link to a $199 Smartphone -
BlackBerry® 8703e - that has turn-by-turn GPS navigation and broadband internet access built in. You can use it by itself, or tether it to your laptop via USB and use it as an EVDO capable modem. I'll bet in a couple of years, this will be standard technology in all new cell phones.