The range has to do with both the AP and the card. With the Cisco 350 AP you can get up to 100-mW output. I'm not sure what the output is for other AP's. Also the receiving cards do not all work the same.
I believe that the Cisco cards are designed to give you the full 11 Mbps transfer rate all the way to the edge of the AP's coverage. Other cards step down the transfer rate the further you get from the AP. So at the same edge where the Cisco card is giving you 11Mbs another card may only be giving you 2 Mbps.
A friend of mine went to Texas to take a class at Cisco so he could teach others at his company how to install the AP's and antennas for the wireless network they were putting together. He told me that at the class they told them about problem with the phones. Think about it. Both the phone and the 802.11b devices operate at the same frequency. Sure it "may" not happen every time. But there is a chance of it happening.
Also consider how many 2.4 GHz phones there are on the market right now. I would suspect that the number of homes with one might not be too high right now. But as the price of the phones drop that will change. Both the phones and the wireless network will compete for the use of that frequency.
In a home environment wireless is great to a point. Even for business use it works well. You can get a verity of antennas to extend indoor and outdoor range. You run into problems when you try to move information outdoors.
I would think this kind of technology right now lends it's self best to larger open structures such as warehouses or manufacturing plants that don't have a lot of electrical noise.
This taken from Cisco's own web site at http://www.cisco.com/warp/public/102/wlan/ap-faq.h tml
Q. What are possible sources of interference for the Radio Frequency link of the Access Point?
A. Interference can come from a number of sources, including 2.4 GHz cordless phones, improperly shielded microwave ovens, and wireless equipment manufactured by other companies. Electrical motors and moving metal parts of machinery can cause interference, too. For more information, see the Troubleshooting Problems Affecting Radio Frequency Communication document.
One problem...
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Wireless Mania
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· Score: 2, Informative
One problem with 802.11b is that someone using a hand held 2.4 GHz phone can cut off the signal. If a person walks between an AP and a user it will cut right through the link.
I wonder how long it will be till people start driving around with a laptop and a good antenna just to see how many unsecured wireless AP they can find. A friend of mine works for a large company that is in the process of installing a wireless network in warehouses across the country. He told me that one of the concerns that had going into the project was how easy it would be for someone to do just that sort of thing.
Just think a hacker could sit outside you business without any physical connection to trace him. Not to mention industrial espionage.
Dose anyone know a good place to get Laser Disks online? I still have my old player. The only reason I've kept it is because I have the special Akira disk set.
There is nothing wrong with expressing dissatisfaction with a corporation. However you do not have to right to make comments about a "person" that can be viewed as slanderous. From what the article said it sure looks like he may have.
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.
-- The First Amendment to the U.S. Constitution
The First Amendment is not about your "right" to slander other people. It's about the right of Americans to express disatifaction with the government without being silenced. It's not an open invite to say what ever you want about a person no matter how untrue it is.
I set up a Hotmail account just for spam. Every time I go to a site that requires an email for something I just use the Hotmail address. The best part is that Microsoft has to store all that spam on their server.
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Thanks for all the great info. I admit I should have thought a little longer before I posted this one.
I believe that the Cisco cards are designed to give you the full 11 Mbps transfer rate all the way to the edge of the AP's coverage. Other cards step down the transfer rate the further you get from the AP. So at the same edge where the Cisco card is giving you 11Mbs another card may only be giving you 2 Mbps.
Also consider how many 2.4 GHz phones there are on the market right now. I would suspect that the number of homes with one might not be too high right now. But as the price of the phones drop that will change. Both the phones and the wireless network will compete for the use of that frequency.
In a home environment wireless is great to a point. Even for business use it works well. You can get a verity of antennas to extend indoor and outdoor range. You run into problems when you try to move information outdoors.
I would think this kind of technology right now lends it's self best to larger open structures such as warehouses or manufacturing plants that don't have a lot of electrical noise.
Q. What are possible sources of interference for the Radio Frequency link of the Access Point?
A. Interference can come from a number of sources, including 2.4 GHz cordless phones, improperly shielded microwave ovens, and wireless equipment manufactured by other companies. Electrical motors and moving metal parts of machinery can cause interference, too. For more information, see the Troubleshooting Problems Affecting Radio Frequency Communication document.
Just think a hacker could sit outside you business without any physical connection to trace him. Not to mention industrial espionage.
Dose anyone know a good place to get Laser Disks online? I still have my old player. The only reason I've kept it is because I have the special Akira disk set.
There is nothing wrong with expressing dissatisfaction with a corporation. However you do not have to right to make comments about a "person" that can be viewed as slanderous. From what the article said it sure looks like he may have.
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances. -- The First Amendment to the U.S. Constitution The First Amendment is not about your "right" to slander other people. It's about the right of Americans to express disatifaction with the government without being silenced. It's not an open invite to say what ever you want about a person no matter how untrue it is.
I guess I should make sure I have "Personal Injury" coverage in my home owners policy before I post any more messages on /.
I set up a Hotmail account just for spam. Every time I go to a site that requires an email for something I just use the Hotmail address. The best part is that Microsoft has to store all that spam on their server.