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Thread: Alfa AWUS036H: Will getting a bigger antenna help?

  1. #1
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    Default Alfa AWUS036H: Will getting a bigger antenna help?

    Hey

    I current have what I believe is a 7dbi antenna. My question is will getting a bigger (to a certain limit, which I imagine after won't do anything or make it worse) help getting a better signal?

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    Default Re: Alfa AWUS036H: Will getting a bigger antenna help?

    EIRP (Effective Isotropic Radiated Power)

    = Transmitter Power (in dBm )
    + Antenna Gain ( in dBi)
    - Cable Loss ( in dB )

    Watch This Video It'll Help You

    Wireless Lan Security Megaprimer Part 11:Alfa Card Kung-Fu
    Last edited by reff67; 10-04-2011 at 04:54 AM. Reason: Sorry Wasn't Payin Attention! I Stand Corrected

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    Default Re: Alfa AWUS036H: Will getting a bigger antenna help?

    Just my two cents: Gain and loss are always in dB. dBm is the power relative to 1 mW.
    I think the major concern is about the gain figure given to some antennas. More gain you have more sharp is the lobe(s). So its usefull to get a specific direction or the target...

    fulano35

    Quote Originally Posted by reff67 View Post
    EIRP (Effective Isotropic Radiated Power)

    = Transmitter Power (in dBm )
    + Antenna Gain ( in dBm)
    - Cable Loss ( in dBm )

    Watch This Video It'll Help You

    Wireless Lan Security Megaprimer Part 11:Alfa Card Kung-Fu

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    Senior Member ShadowMaster's Avatar
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    Default Re: Alfa AWUS036H: Will getting a bigger antenna help?

    My two cents also. I havea 5 dbi and a 9 dbi. My 9 has far greater reception than the 5. Same card as yours.
    World Domination is such an ugly phrase. I prefer the term World Optimization.

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    Default Re: Alfa AWUS036H: Will getting a bigger antenna help?

    Thanks for the explanations But I also wanted some "n00b friendly" suggestions on antentas....

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    Senior Member ShadowMaster's Avatar
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    Default Re: Alfa AWUS036H: Will getting a bigger antenna help?

    So get the 9 dbi. More than the 5.
    World Domination is such an ugly phrase. I prefer the term World Optimization.

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    Default Re: Alfa AWUS036H: Will getting a bigger antenna help?

    Quote Originally Posted by riahc3 View Post
    Thanks for the explanations But I also wanted some "n00b friendly" suggestions on antentas....
    I started using a 6dbi, rugged black Dlink with a magnetic stand, but then switched to the ASUS 9dbi antenna. I noticed the stand was smaller so I use my Dlink stand with the ASUS antenna. Some people connect the antenna directly to the Alfa and some say it needs that magnetic base. I haven't really done a lot of tests to determine a difference.

    You should also consider the antenna type; Omni vs Parabolic vs Yagi and the distance you are from the AP and/or Receiver. Generally Omani-Directional are low gain. I have had great success with hi-gain Panel antennas (which can exceed 30dbi)

    Here's are some antenna example Omani-Directional choices for you;

    ASUS 9dbi
    http://www.amazon.com/Asus-Network-W.../dp/B004LP9XTE

    ALFA 9dbi
    http://www.amazon.com/Alfa-9dBi-Boos...9047112&sr=1-6

    Generic 10dbi
    http://www.amazon.com/10-dBi-2-4GHz-...9047112&sr=1-4

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    Default Re: Alfa AWUS036H: Will getting a bigger antenna help?

    i also have a 5 and 9 dbi antenna for my alfa awus036h. the 9dbi sucks. but i understand the original 2dbi from alfa is still the best of them all

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