network between buildings

Discussion in 'General Discussion' started by Anonymous, Jul 21, 2005.

  1. Anonymous

    Anonymous Guest

    I have a wireless network in my office (using a Linksys Wireless-G router). My appartment is in the same street, on the same side of the road, about 25 meters away. The buildings are old and have one foot thick stone walls.

    Forgive my for my ignorance if what I am about to say is rubbish...

    The Linksys router has two aerial fittings on the back. I figure I can unscrew one of the aerials, attach an extension cable, buy an outdoor aerial and put it on the outside wall of my office building. That should be enough to get the signal to my flat window about 25 meters away (with clear line-of-sight).

    Then what I think I need to do is have another exterior aerial on the wall of my appartment, to send/receive to the one outside my office, and then have the cable from that go into my appartment to another wireless device which would broadcast the signal for my appartment. My aim being of course to be able to access my office network from my appartment.

    Does that make sense? What would the second device have to be? Are there any web pages anywhere that describe how to do this kind of setup? I've Googled but I'm not quite sure what I'm searching for.

    (I have considered running ethernet or optical cable along the front of the building but it would be very problematic as they are historic buildings and I probably wouldn't be able to get permission from the other property owners).

    Many thanks for any help you can give.
  2. howardp6

    howardp6 Network Guru Member

    Stone unless it is wet does not attenuate a WiFi signal significantly. Metal, water, mirrors reflect or block signals. There are some antennas that allow you to connect both of the antennas. For the best signal you should have two directional antennas one conected to the Linkys router the other to a WET54G, WET54GS5 or a WAP54G in bridge mode. The problem with the antennas is that some people find them unsightly and the historic, property owner issue again rears its ugly head.
  3. Anonymous

    Anonymous Guest


    many thanks for your speedy response. The stone walls isn't really the issue I guess, it is just a detail. The issue is that the wireless signal won't travel the 25 meters *through* the building, but outside I have direct line of sight.

    I've thought about the issue of the antennas being unslightly - I can easily hide them in plant foliage.

    My main issue is what technology do I use and how do I configure it. But I guess I'll just buy the kit and then figure it out.

    Thanks again.
  4. Anonymous

    Anonymous Guest

    suitable exterior aerial

    What would be a suitable exterior antenna to use for this application? I guess the requirements are:

    1) suitable for a bridge distance of around 25 meters.
    2) directional.
    3) for exterior use.

    Do Linksys sell a suitable antenna? And (sorry for ignorance again!) the cable that attaches the antenna to the router - what is it called? I guess I would need to get one made up of the appropriate length.
  5. Anonymous

    Anonymous Guest

    Anyone know what would be a suitable antenna?
  6. Anonymous

    Anonymous Guest


    You can make simple antennas out of cans and coaxial cable. Search google for "cantenna" and there should be plenty of sites. However, boosting your signal by making your own antenna is against the law in some places....
  7. howardp6

    howardp6 Network Guru Member

    Just be careful with the type of coaxial cable you use. There are posting on the correct cable type and connectors. If you use a cable with the wrong impedance you will have a impedance mismatch. Hawkings and DLINK have exterior antennas and cabling.
  8. Anonymous

    Anonymous Guest

    Thanks for your response.

    I don't really want to make my own antenna - I would prefer to buy one as I'm not good at making things!

    It's just there seems to be lots of different types and I don't understand all the differences, but I guess the key things are it has to:

    a) be for exterior use
    b) over a distance of 25meters
    c) be directional - it is just to jump from one building to another.

    I guess this is a fairly standard thing.
  9. t4thfavor

    t4thfavor Network Guru Member

    makes a good antenna the linksys router has a rp-tnc connector on it

    you would have to get a cable called a pigtail to match whatever antenna (usually N style) to the rp-tnc

    i too would like to do the same thing except i would like to have 2 devices (one on each end) that would not only bridge but create a hotspot as well

    i am fairly knowlegable on this subject as are many on this site just keep it up and you will get it.
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