I am thinking of setting up a paid wifi hotspot business in a small town. I need a wifi antenna that can cover an area of about 20km in radius. Can anyone out there with IT knowledge tell me the type and brand of omni directional wifi antenna to use? I intend to use only a single antenna to serve the radius. If you have links to website of the product, kind give it to me.
2007-08-03 01:18:23 · 2 answers · asked by MBA 1 in Computers & Internet ➔ Computer Networking
Well you probably WONT find an Omni with that type of gain. The ability to add gain requires reflectors and that just isn't possible with omni directional antennas.
There are several 11-15db omni for outdoor use. With 30db antenna you could well exceed the legal limits for output! You also need to decide horizontal or vertical radiation pattern. Which depends on what is around you to interfere with your system.
One good source is
http://www.hyperlinktech.com/web/hg2415u_pro.php that is a 15db vertical.
Another is
http://www.radiolabs.com/
You can use a good amplifier with your antenna to get better coverage for your system (just dont exceed your local output limits!!!). Height of the antenna does matter the clear path is what you are after. If your terrain is flat roof mounting will give you good coverage. You also don't want to get it too high or those nearby will be skipped as the signal will be too far over them to pickup well.
Here is a good article to start with.
http://www.seattlewireless.net/AntennaHowTo
We have one central antenna at 90 feet with three sector antennas which cover 120 each so three radios are used to cover the entire 360 radius. These are available up to 20db but 13-15db works well with good radios.
See http://www.hyperlinktech.com/web/antenna_array.php
2007-08-03 01:33:46 · answer #1 · answered by Tracy L 7 · 0⤊ 0⤋
Omni Directional Wifi Antenna
2016-11-09 00:22:26 · answer #2 · answered by wetzler 4 · 0⤊ 0⤋
This Site Might Help You.
RE:
Where can I get a good 20db to 30db Omni Directional wifi antenna?
I am thinking of setting up a paid wifi hotspot business in a small town. I need a wifi antenna that can cover an area of about 20km in radius. Can anyone out there with IT knowledge tell me the type and brand of omni directional wifi antenna to use? I intend to use only a single antenna to serve...
2015-08-20 14:39:46 · answer #3 · answered by Finn 1 · 0⤊ 0⤋
Omni Wifi
2016-12-18 05:10:58 · answer #4 · answered by Anonymous · 0⤊ 0⤋
An omni-directional antenna actually ONLY passes signal in a narrow band in one direction. It does NOT radiate 360 degrees.And you do NOT double the signal even if it was. If you buy a proper matched cable there is little loss.
2016-03-20 15:08:22 · answer #5 · answered by Anonymous · 0⤊ 0⤋