Solved

(URGENT) WIFI -NON  LINE OF SIGHT

Posted on 2006-10-24
2
771 Views
Last Modified: 2013-11-09
I am putting a WIFI ISP in my city

As  the wifi devices work in  line of sight ..what does the line of sight means

As my city  is a valley
if i  give the  hight  of the transmiitng  tower  (with acess point and omni anteena) at 8000 ft . (on a hill) then all the recieving devices (acess point) in  valley  should be in the sight of the tower or i have to give the reciving  acess points the same height as the transmiting  acess point if so .....


Is there any economical  devices which works under non line of sight ....if so  can  any one  tell me details  of these  devices  and how  it works and will these devices work  in the my project
0
Comment
Question by:pawankk
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 30

Expert Comment

by:Scott C
ID: 17796949
Line of sight means you can get from point A to point B in a straight line with no obstructions.

Height or elevenation doesn't matter.  Think of it as a "ball".

As long everything is within the distance range you should be fine.
0
 

Accepted Solution

by:
SeriousScott earned 125 total points
ID: 17798105
WiFi is not necessarily line of sight. If you are talking about wireless access points, generally, if the receiver is within distance range of the signal, it is able to connect. Obstructions will reduce the usable distance range.

There are a lot of physics to the "line of sight" equation in higher end wireless connection gear such as the Cisco 1400 series and up, line of sight is actually the basic shape of a football, so if you set up Point A and imagine it as the the tip of the football, then point B is the other end. Its called a Fresnel Zone and you can read about it here:

http://www.cisco.com/en/US/products/hw/wireless/ps5279/products_tech_note09186a0080508551.shtml

Your wireless network may require more than one wireless access point, depending on the size of the area you want to cover and how much you are able to spend on your infrastructure. You can start by looking at devices such as the Cisco 1300 Series Wireless Access Point/Bridge ( www.cisco.com) , or the Tropos 5210 wireless router ( www.tropos.com ) .

Regards,
Scott
0

Featured Post

Portable, direct connect server access

The ATEN CV211 connects a laptop directly to any server allowing you instant access to perform data maintenance and local operations, for quick troubleshooting, updating, service and repair.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Short answer to this question: there is no effective WiFi manager in iOS devices as seen in Windows WiFi or Macbook OSx WiFi management, but this article will try and provide some amicable solutions to better suite your needs.
When it comes to security, there are always trade-offs between security and convenience/ease of administration. This article examines some of the main pros and cons of using key authentication vs password authentication for hosting an SFTP server.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question