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Mussels makes some crappy wifi cantennas!

Discussion in 'Project Logs' started by Mussels, May 16, 2013.

  1. d1nky

    d1nky

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    ^^^ that person doesnt have neighbours hence the wifi antenna hahahaha
     
  2. Mussels

    Mussels Moderprator Staff Member

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    not to ruin your jokes, but i did kinda prove that no matter what aerial you use, a powerful transmitter and sensitive receiver are requirements.
     
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  3. jsfitz54

    jsfitz54

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  4. remixedcat

    remixedcat

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    Yep and it's a pity that a lot of people don't have high power routers like AMPED WIRELESS! or EXTREME NETWORKS!!!!!
     
  5. theoneandonlymrk

    theoneandonlymrk

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    Very thorough mussels im impressed enough to go straight to the Chinese on the way home , foods a bonus but I need me some lids.
     
    5 Million points folded for TPU
  6. mlee49

    mlee49

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    Whats the point of all this? To pick up more WiFi hotspots?

    I get the fact that you can add a tin can and get better reception, but why don't you just go and make your own? I designed a 2.4GHz Helical Antenna that has approximately 15 dBi of Gain compared to your puny 5-7 dBi(even with the 3 dB from the backplate). I made it out of PVC pipe, wire, a 1'x1' aluminum sheet, and some wire. You'd have to test it to make sure it hit the operating frequency, but it only cost about $50 and you could easily pick up wifi over a mile away.


    Good luck with that, the most manufacturers use the max power rating of 30 dBm or 1W, which is the FCC standard for ISM band. As for the receiver, sensitivity will only matter when your signal is bottoming out the noise floor. With a better antenna you effectively bring the signal level up, thus offsetting the sensitivity factor.

    Source: I'm an RF Engineer.
     
  7. Frick

    Frick Fishfaced Nincompoop

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    Gheetttooooooo and $50 is tons of money.

    But seriously do a Pringles can.
     
  8. Jetster

    Jetster

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    I don't think your neighbor has a clue what your up too

    [​IMG]
     
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  9. theoneandonlymrk

    theoneandonlymrk

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    So show us your aerial already smart ass:p.
     
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    5 Million points folded for TPU
  10. MyTechAddiction

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    Show us the antenna :rockout:
     
  11. Athlonite

    Athlonite

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    I've used the Pineapple tin to make an Directional aerial for a mate and his back neighbour roughly 75mtrs away it works well for that sort of thing as does the Pringle's can it's just a matter of getting them lined up for the best point to point wifi
     
  12. remixedcat

    remixedcat

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    I am gonna show AMPED WIRELESS! this thread. Wonder what they will say.
     
  13. Mussels

    Mussels Moderprator Staff Member

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    thats a rebadged alfa aerial. they cost about half as much, and a lot of people are saying they arent doing as good as a 5dbi omni
     
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  14. Mussels

    Mussels Moderprator Staff Member

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    to see what ANYONE can do to get an improvement. an idiot proof design, that anyone can make with no time or effort.




    the adaptors i used are 150ma (nano), 500ma(black dual aerial), and 680ma (the big white panel, advertised 6800mw but thats fake).

    got a 1W alfa coming in the mail, and theres a 2W version out now as well (but its got driver issues at present)

    i said in the first post (as an edit) that you really need a good adaptor AND a good aerial to get results - and this is just a way to improve on any normal aerial you have, without spending money
     
  15. remixedcat

    remixedcat

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    OMG Amped allready was working on those and they sent me this to beta test and here's mine!!!:
    [​IMG]
     
    Last edited: May 17, 2013
    Jetster and Mussels say thanks.
  16. mlee49

    mlee49

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    Just in case you want to check my math:

    [​IMG]

    [​IMG]


    [​IMG]

    Also, here's some references on other good 2.4GHz home made antennas:

    Helical:
    http://helix.remco.tk/

    Yagi:
    http://www.instructables.com/id/Easy-to-Build-WIFI-24GHz-Yagi-Antenna/

    Biconical or Bowtie:
    http://www.rcgroups.com/forums/showthread.php?t=1328260

    All of those can be made from everyday supplies, the Bowtie is the easiest as it's tuning is almost nill to get it to operate at the center frequency. Plus it can have up to 11 dBi of Gain and will beat most patch antennas.

    Oh, I'm not trying to be a smartass. When half of the forum shows up to help a member talk about a Power Supply or Case suggestion nobody's a smartass in that scenario. I enjoy Antenna design and have a great career with them, so what if I post about something I love. :)
    :toast:
     
  17. Mussels

    Mussels Moderprator Staff Member

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    they involve more than stickytape and things i can steal from work, so they arent as easy as my designs.
     
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  18. mlee49

    mlee49

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    But they are better ;)

    The bowtie one can be made out of a coat hanger and a piece of metal from a cookie sheet. Soldering would be recommended, but you could 'rig' it.
     
  19. xxdozer322

    xxdozer322

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    Lol sooo awesome, had me LOLing so hard.
     
  20. Mussels

    Mussels Moderprator Staff Member

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    so, does anyone have any other crappy designs you can make in under a minute they feel like recommending?
     
  21. m1dg3t

    m1dg3t

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    If i have access to it, it's NOT idiot proof! :laugh:

    An empty crisps/chip bag? Collapsible, portable, lightweight? :twitch:
     
  22. n0tiert

    n0tiert

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    atleast do not take milwaukee's best, taste like sewer water :p
     
    Last edited by a moderator: Nov 20, 2013
  23. de.das.dude

    de.das.dude Pro Indian Modder

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    crappy antennas are crappy.
     
  24. theonedub

    theonedub habe fidem

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    Wrap a plastic colander with tin foil and use as parabolic dish. Yes, I've done it before and yes it works well. However, nothing I messed with before works better than the wireless adapter I have now (same black one you have, second to last- with 2 high gain antennas).
     
    Crunching for Team TPU
  25. jsfitz54

    jsfitz54

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    Any other recommendations on stock antenna parts? I have a beauty/cosmetic issue involved as well. Which of the 3 antennas should be replaced? One? Two? All?
    Friends Asus RT-AC66U, swapped stock 5dbi antennas for 9dbi.

    His house has two additions with the router in a rear upstairs 2nd floor family room which is loft like in that it has a half wall with roof line pitch. The dead spot is the first addition: far outside wall, single level, TV is picture mounted. When the TV was stand mounted it picked up a signal.

    Router placement is limited as phone service is included as well. The router is mostly above the roofline of the other original parts of the house. Signal issue has always been an issue to the room in question and the front part of the house.
     
    Last edited: May 17, 2013

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