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Line Of Sight, essential ?

  • 25-03-2003 2:18pm
    #1
    Slaanesh
    Moderators, Education Moderators Posts: 1,863 Mod ✭✭✭✭


    Is line of sight essential for long range wireless networks. I would like to setup a wireless network between three houses. Each are about 5 km's away from each other. Is this too far ? Would I need line of sight ? Iv'e read it depends alot on power output and all that. Is there a way of testing if I can get a signal between the two houses using equipment of some sort ?

    I know a guy who set's up Chorus TV around my area, he might have some such equipment.

    Sorry if I'm vague, I really don't know much about wireless.

    Slaanesh.


Comments

  • #2
    Rew
    Moderators, Sports Moderators Posts: 8,679 Mod ✭✭✭✭Rew


    From what you have said here you will need LOS, you can up the power to try push through the obsticals but you may cook some unsuspecting person who gets in the way....

    Whats in the way anyway?


  • #3
    peterd
    Registered Users, Registered Users 2 Posts: 258 ✭✭peterd


    Originally posted by Slaanesh
    Is line of sight essential for long range wireless networks.
    LOS is essential especially for long range links. If you're looking at linking nodes within 100m, you can usually get through a few walls e.g. in a building, but for long range links, you would want LOS for an ideal connection, otherwise, the only way of finding out is physically testing a link.


  • #4
    irishguy
    Registered Users, Registered Users 2 Posts: 3,303 ✭✭✭irishguy


    you need LOS for nearly all distances i have a link going 110feet and i need an antenna [a bit of cable cut to 1 wave length] i have this poking out my roof, it wont go through my roof otherwise.but i get a perfect signal.if you need more help try www.irishwan.org or on irc:
    irc.irishwan.org
    port 6667
    #irishwan
    #midwestwan


  • #5
    quozl
    Registered Users, Registered Users 2 Posts: 3,308 ✭✭✭quozl


    you wont get anything close to that distance without line of sight plus a few percent for the fresnal zone. Increasing the power won't do any good unless you're just a couple of hundred metres away,

    try the irishwan forums http://www.irishwan.org/board, you may be able to borrow equipment to test signal between locations. Even if you don't have line of sight from your top floor, you may if you are going from 5 foot above the top of both chimneys. If you don't have line of sight from pole height, you've no chance unless you can go through another site you both can see,
    Greg


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