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Problems with my new antenna

Discussion in 'Tomato Firmware' started by jbrunopt, Oct 10, 2007.

  1. jbrunopt

    jbrunopt LI Guru Member

    Hi everyone!

    I've just bought a new antenna for my WRT54GL (with Tomato firmware) and I'm having some problems to get the most of it since my previous antennas were the default ones and now I've got a 7dbi one.
    These are the specifications:
    # Frequency Range: 2400-2483 Mhz
    # Bandwidth: 83 Mhz
    # Gain: 7.0 dBi
    # Nominal Impedance: 50 ohm
    # Polarization: Vertical
    # Maxium Power: 50W
    # Connector: RP-SMA

    So, what should I do to get all its "substance"? I mean, after switching the antennas the signal power has been as weak as it was before.

    Thanks in advance
     
  2. ifican

    ifican Network Guru Member

    Your best bet is going to tell the router to use only the side you have the new antenna connected too. I dont know if you can do that in tomato and i currently dont have a unit with tomato on it to test but i know you can in other firmware so i would think that you could. Hopefully someone will beable to tell you here shortly.
     
  3. jbrunopt

    jbrunopt LI Guru Member

    thanks for your replay. actually, there's an option to choose which antenna i want to be the transmitter and the receiver and I've chosen the "Auto" answer but it hasn't work that well. By the way, I have just one antenna connected to my router on the connector marked with the red circle:
    [​IMG]
     
  4. mstombs

    mstombs Network Guru Member

    Its not good for RF amps to not have a terminating resistance in place of an antenna. I know people do this to install a single remote aerial - but they either don't worry about damaging the unused side - or they trust the software switch selection available in some 3rd party firmwares - should be available from the command line wl, probably similar to dd-wrt (Broadcom source):-

    http://www.dd-wrt.com/wiki/index.php/WL
     
  5. jbrunopt

    jbrunopt LI Guru Member

    so you mean that I should plug-in one of the default antennas, right? If yes, can you tell me which one is the A and the B antennas?
     
  6. mstombs

    mstombs Network Guru Member

    yes, I would plug an old antenna back in. I would also only unplug and change antennas with the power off (I have 2 7dB Linksys ones)! To find which is which usse trial and error, is 0 nearest the power connector or not?

    http://www.nickcoons.com/blogs/comments.php?blog_id=43
     
  7. Slimey

    Slimey Network Guru Member

    The RP-SMA is going to be a problem ;)
     
  8. danix71

    danix71 LI Guru Member


    A is the one next to the reset button.
     

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