You have to create a long distance link with a directional antenna a > tincan /pringle antenna is easy to do and has 100s of installations. > on one end you connect your wifi router to a regular adsl or other > internet connection. At the remote end you terminate into a lan > network. > > How much distance is meant by long distance? I suppose the distance would be inversely proportional to the square of the transmitter's power.
The link will work only line of site, so you need both antenna as high > as possible. > > How high should the antenna be? The Reliance provider says he has 80m high towers with a range of 15km but we are just 4 km away from that transmitting tower as the crow flies according to him. And then he says we need a tower at our site also which will be provided by him and will be either 18m or 27m high. I fail to understand --on one hand he says his transmitting tower has a range of 15km radius and on the other he needs another tower at the client end of about 27m in height which is just 4 km away. The frequencies (RF or microwave) used or licensed to Reliance are not mentioned--if anybody knows of any link to TRAI or DOT websites which could shed some light on the matter, it would be most helpful. Since the frequencies will determine whether we would necessarily need line of sight or could work even with non line of sight. The frequencies licensed to Reliance would also determine whether we can easily recieve the 2 Mbps speed or there will be significant attenuation. Also there must be some frequency bands which are still unlicensed or free to the Indian public for putting up their own wireless meshes or wimax etc installations??? Also i have been told that the router being given by reliance in their quotation is almost obsolete and will need to be upgraded to an ethernet router when we go in for speeds higher than 2 Mbps later. So can anybody give me an idea of the hardware equipment to be thought about and the costs involved? Thanks in Advance for any help. Kussh -- http://mm.glug-bom.org/mailman/listinfo/linuxers
