I need to buy Long Range Wireless Antenna

charles123 · #1 (**permalink**) 10-06-2007, 01:54 PM

Hi guys

Im new to this forum and this my first post..What i need is to buy a long range antenna that is fit to travel miles away to get wireless internet, can any body advise me or if they have for sale any thing that i require specifically, it would be highly appreciated if you can be of help to me.

You can email on ziggynuff@yahoo.com or add me on ziggynuff on yahoo msg.

Kindest regards

charles123 · #2 (**permalink**) 10-07-2007, 09:28 PM

Seems like no body cant be off any help

c24 · #3 (**permalink**) 10-24-2007, 09:22 PM

Hi there -

That's a tough range to cut in the miles. Your best bet would be Parabolic or Yagi antenna. Go for the best gain you can get - 21dbi parabolic for example.

For a couple of our product options, search for "yagi" or "parabolic" at our shop -
confero24.com | WiFi/WLAN Antenna (Outdoor/Indoor, Omni-Directional, Sector/Panel), Cables, Boosters, Splitters : WLAN Antenna, Cables, Accessories

c24

FredZ · #4 (**permalink**) 10-25-2007, 07:33 AM

I am Personally using 24db grid arrays for both of my long distance connections, 1 is 2.1km and the other is 9km. I run the APs in B mode only and have no issues even with the limited bandwidth of B mode. Ping times are typically <3ms static (no treaffic) and <15ms loaded.

Try searching for "grid array" they come in 15,17,19,21,24db configurations. The biggest advantage with grid arrays over parabolics is wind resistence.

Regards

Fred

c24 · #5 (**permalink**) 10-27-2007, 09:07 AM

Just to add to that, long haul networks are always better served by setting access point to 802.11b. The reduced bandwidth amounts to higher range.

Add to that 2.4 GHz Yagis or Parabolic antenna + shielded low-loss cables and you got a powerful transmission point.

c24

gowifi · #6 (**permalink**) 11-07-2007, 08:20 AM

The type of AP and client adaptor you use is just as important as the antenna. With a standard low powered device around 17dBm (50mW) you will only reliably get about 4km with a 24dBi antenna. We use EnGenius/Senao and Ubiquiti who make radios up to 28dBm(600mW) which can give you a 40km bridge line of sight with just 19dBi grids. Go Wireless NZ Ltd can supply all the equipment for this type of link to New Zealand customers.
Cheers, Dale.

c24 · #7 (**permalink**) 11-13-2007, 10:50 PM

Please all do bear in mind that the 100mW transmission power (EIRP) is the maximum legal limit in most countries outside the US. In US it is 200mW.