1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Weather Interference

Discussion in 'General Discussion' started by patrickt, Apr 26, 2006.

  1. patrickt

    patrickt LI Guru Member

    If my wireless signal has to go outside will rain cause problems?
  2. vincentfox

    vincentfox Network Guru Member

    Rain itself is somewhat of problem. However falling raindrops do not fill much actual volume of air. So an a dish in open air shooting through rain to another one will not see too much degradation.

    The problem comes if there is anything in signal path that become wet, that will block signal. This standing water can be very significant. I have one link that goes through some trees and leaves. Signal is okay when dry and for up to 15 minutes of light rain. Past that point the trees and leaves become saturated and signal drops out completely.
  3. patrickt

    patrickt LI Guru Member

    Thanks. I live in an apartment building in Mexico so the signal goes through reinforced concrete walls. Some of the walls are exterior, in ventilation shafts, and my neighbor says she loses the signal when it rains. We're pushing the limit now so when I make my annual visit to the states next month I'm getting some better antennas and I'm debating a range extender.
  4. DaveMcLain

    DaveMcLain Network Guru Member

    I've never had a problem from the weather with my setup and it's sending rather far, using a range extender and high gain antennas. For some reason my worst interference happens when the sun comes up in the morning. After a few hours, mid morning on it's fine, or if it's cloudy..
  5. WirelessOverSand

    WirelessOverSand LI Guru Member


    Is your dish pointing directly at the sun when you have the "dawn problem"?

    I have heard of the same problem with sat-tv dishes when the sun passes directly in front of them.

    If the dish is optically reflective, this might be due to the heat being focussed on the electronics of the sat-tv dish, but the other explanation I have heard (and sounds more feasibly) is that the electromagnetic radiation of the sun (noise!) is dropping the s/n ratio to an unacceptable level.

    Doesn't exactly suggest a solution - except maybe, if the link is short enough, a pair of antennas with diversity (but then you'd probably be using dishes at a range where any significant diversity would not be possible.


    (as I have posted on another forum here) I recently installed one of these, despite all the "bad press", and at first I thought I was having problems setting it up as I could not "see it" on the laptop, despite the thing being a couple of feet away from me.

    Then I loaded NetStumbler and realised that - because the WRE has to have the same SSID (name) as the WRT - I was indeed connecting via the WRE. NetStumbler reported both (as well as the "Broadcom Setup Beacon" at the power-on) :grin:

    The WRE is deployed on the roof-top some 60 yards away from the WRT to provide access to the far end of our 100-plus yard network. Works just like the box says :)


Share This Page