Home > Archive > General Discussion > June 2001 > Beware of wirless business





You are viewing an archived Text-only version of the thread. To view this thread in it's original format and/or if you want to reply to this thread please [click here]

Author Beware of wirless business
Kasor

2001-06-22, 4:40 pm

Bluetooth and 802.11b, short-range and local area wireless network are expanding it functions all over the place. From cafe, school, shop, warehouse to hospitals.

A small handheld with great flexility, low-cost, high-speed to anywhere around the city.

As my resouce stated that 802.11b standard provides transmission rates of up to 11Mbps at distances of about 100 meters. It is a great improvement since the last few years.

From what I know that, many sale agency started to implement the wireless system to help they saleperson to get better communication between each client.

PDA is flying......
ccieToBe

2001-06-22, 9:19 pm

Yeah, wireless networking's lotsa fun. I have it setup at my house. The tranfer rate is 11Mbps if you can get a good signal, but there's so much overhead that it's effectively slightly slower then ethernet.

One of the largest problems that's showing up with wireless networks is the security holes it creates. A lot of businesses keep the default settings which makes breaking in a simple mater. Even when the built in encryption protocol (WEP) is enabled with a custom key, it's still not that difficult to break in because of some WEP exploits. Setting up a VPN for the wireless clients is one way to increase the security.
Randy

2001-06-23, 9:37 am

To me, wireless means me ole ham radio setup! My call is KB5BYS and I hang out on 160 meters if any other hams are out there.
ccieToBe

2001-06-23, 10:55 pm

Hmmm, I wonder how I would hook up a PC to a ham radio. It'd be slow, but at least I'd get some serious range out of that setup
Randy

2001-06-24, 6:05 am

It can be done. I have my Linux server hooked up to my ham radio. How's that for compatibility?
ccieToBe

2001-06-24, 12:42 pm

Cool, would it be possible to transmit data (wireless network) with your setup?
Randy

2001-06-24, 2:29 pm

Yeah, that's the whole point. Just remember that when you go from computer to radio you go from digital to analog and will need a hefty EC algorithm and huge amounts of power as the signal degrades pretty fast. Using lower frequencies will preserve the signal quality more so than higher frequenices, but since those sognals usually do a bounce in the upper atmosphere, there is still a high potential for interference. Also, encryption will be necessary, as these signals are "out in the open" so to speak . . . anyone who knows what you are doing can intercept the signals.
MnMurphy

2001-06-26, 2:30 pm

Wow, does Pizza hut deliver in Antarctica?
David Ferschweiler
K4THX
Powell, TN

I would talk to you but I don't have the rig or the room for an antenna.
Randy

2001-06-26, 2:32 pm

In Louisiana actually. The Antarctica thing is a Linux joke. 1x3 call, hey? Advanced class? I just have a transmatch and radiate my apartment building.
MnMurphy

2001-06-26, 3:36 pm

I gradiated (catch the southern slang?)
up to a Extra
and now I also am a VE with W4VEC.

I haven't had too much time for radio lately. Getting a 2 meter rig to talk on 160 is gonna be a challenge that I don't want to undertake at this time. Too much other reading.
Sponsored Links





Free Braindumps | MCSE braindumps software forum

Copyright 2003 - 2008 examnotes.net