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Distance Between Antenna

Discussion in 'Networking Issues' started by Kulai, Jul 9, 2006.

  1. Kulai

    Kulai Network Guru Member

    I have 3 antennas for 3 AP mounted on the same tower. To add to the complication, there is a big ham radio antenna on top of this same tower. What is good distance between and 3 antennas, an the ham radio antenna, to minimise interference?
  2. Indy24

    Indy24 LI Guru Member

    What is the operating frequency of the Ham antenna? Also is the power output of the Ham radio? These could be factors of the possible interference.
  3. Kulai

    Kulai Network Guru Member

    The Ham radio is not mine so I don't know what is the frequency. It should be in the MHz range, much lower than the 2.4GHz WiFi frequency. The Ham radio is off most of the time. If it is on, it would be 100W but it is hardly on. It belong to my father who lost interest in it.
  4. Indy24

    Indy24 LI Guru Member

    I would start around 10 to 12' below the Ham antenna. Give this a try and let us know how it works.
  5. Kulai

    Kulai Network Guru Member

    10' below the Ham antenna will be too low for my WiFi antennas Line-of-Sight. I will try about 8' above the Ham antenna with a mast. What about between the 3 WiFi antennas? What would be a good distance between them having very close frequncies? I am using channel 1, 6 and 11 to avoid overlapping.
  6. Esquire

    Esquire Mesquire Staff Member Member

    What is the max distance you can place between them? I'd would start with that.

    (Interesting subject matter by the way)
  7. Kulai

    Kulai Network Guru Member

    I think I should be able to spread the 3 WiFi antenna 10' apart horizontally from each other away from the tower. At least one of them can be on a mast that can be further away vertically. However, I will not be able to adjust effectively the angle and tilt of the antennas to align with the clients. Will try it this weekend.

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