WRT54G range problems - new antenna?

Discussion in 'Cisco/Linksys Wireless Routers' started by Anonymous, Oct 24, 2005.

  1. Anonymous

    Anonymous Guest

    I have a WRT54g with Firmware Version: v3.01.3 - HyperWRT 2.0 and a PC upstairs about 15-20 metres away from the router. a couple of walls in the way, couple of large bits of furniture etc.

    I've run a seperate higain antenna from the PC away from the speakers etc and I'm getting 1 bar off the top of the windows zero point service graph. Netstumbler refuses to give me any useful information from the card.

    Unfortunately the signal randomly drops. If I move the aerial slighly (the one on my desk) signal decreases quite dramatically.

    I'm probably going to try and replace the card in the PC (currently a Hawking 54g), but first I'm looking at replacing the antenna on the WRT54g.

    Any ideas what connection it uses on the two stubby antenna? Any recommendations on a good antenna/setup I should use?

    btw - fantastic, a tech forum that leaves itself open without forcing me to open _another_ account in a place I'd rarely visit! Thanks for your help.
  2. crawdaddy

    crawdaddy Network Guru Member

    the connector on the back of the WRT54G is a R-TNC connector. That's about all the help I can knowledgbly offer.
  3. Anonymous

    Anonymous Guest

    Nope - that's a start! :- )
  4. vincentfox

    vincentfox Network Guru Member

    There are wide selections of replacement antenna. The Linksys uses RP-TNC, which seems about 2nd most-common around. Quite often I find antenna on store shelves have more common RP-SMA connector, but include adapter for RP-TNC. This is true of HawkingTech antenna at least. A link to them:


    You can also make your own reflector very cheaply:


    It's important to understand the shape of the gain pattern, and tailor that to your target usage. An omni for example puts a big fat donut of max gain around the antenna. So for example with the antenna straight up, clients underneath are not getting good signal. If your AP is in the attic or basement, at least turn antenna on it's SIDE and try that first. Quite often, AP's are nearer to edge of house than center, so omni is a poor choice as it wastes most of it's signal out toward the street.

    In many uses some sort of directional antenna is a better choice than the wretched 2 dBi rubber ducky included with the unit.
  5. t4thfavor

    t4thfavor Network Guru Member

    buy the linksys antennae they should be redily available at most computer retail places and actually works pretty good

    jack up the power a little bit it also helps wonders but only after you get the new antenna and not over 50mw (without adding a fan)

    i had a great couple of pics of my router on this site but i lost my host so they are all unhosted
    pm me if you need to see any of them i can probable email them to ya er something
  6. Anonymous

    Anonymous Guest

    Am I right in thinking that if I only need replace one antenna because of the way it switches? I'm just looking to save myself £30 ($55)
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