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Coat Hanger Antenna

Discussion in 'Local Reception' started by timmmaaayyy2003, Jan 29, 2009.

  1. timmmaaayyy2003

    timmmaaayyy2003 Hall Of Fame

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    I just wanted to post my experience with the "Coat Hanger Antenna" that has been seen on the internet.

    http://www.metacafe.com/watch/762088/coat_hanger_hdtv_antenna_better_than_store_bought_amazing/

    The process involves creating an 8 element UHF antenna out of a board and coat hangers (as the name implies).

    All I can say is, IT WORKS!!!:D

    I built mine using copper wire (12 ga). Other than that, the only modification I added to it was 2 6 foot wires added at the matching transformer so it will pick up the VHF in addition to the UHF. Best of all, it didn't cost me a dime since I had all the supplies already.

    I have it mounted in the attic of a one story house and my signal strength is in the low 70's to 100 YMMV.

    Now if only I could get DTV to add all the sub channels to my AM21.:rolleyes:
     
  2. smackman

    smackman Godfather

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    Sep 18, 2006
    You say you added 2 6 foot wires at the transformer for VHF. Did you put one section of 6 foot wire under each screw? Did you pont the wires up like a "V" with this 6 foot addition?
    Thanks in advance
     
  3. BattleZone

    BattleZone Hall Of Fame

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    This video is just showing how to make a DIY UHF bow-tie panel antenna. But such antennas are already very cheap; mine cost less than $20, and is out-door worthy and came with a mount for a pole.

    Still, it's always interesting and fun to be able to make something useful yourself.
     
  4. Retro

    Retro AllStar

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    Nov 27, 2007
    Does aluminum foil still work?:lol:
     
  5. timmmaaayyy2003

    timmmaaayyy2003 Hall Of Fame

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    That's exactly how I did it. The one VHF station in my area is now at 100%.
     
  6. timmmaaayyy2003

    timmmaaayyy2003 Hall Of Fame

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    Ah, but with mine I saved $20 and in our current situation....

    Hey, $20 is $20:D
     
  7. Tom Robertson

    Tom Robertson Lifetime Achiever DBSTalk Club

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    Awesome, timmmaaayyy2003!

    To me, this isn't a project about $$ (ok $20 is $20), but about having fun building something that is simple and works.

    Congrats!
    Tom
     
  8. beakor

    beakor Legend

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    May 29, 2007
    Do you have a picture to share?
     
  9. timmmaaayyy2003

    timmmaaayyy2003 Hall Of Fame

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    Here you go.

    antenna.jpg [
     
  10. beakor

    beakor Legend

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    May 29, 2007
    nice! Its always fun to build things.
     
  11. Tom Robertson

    Tom Robertson Lifetime Achiever DBSTalk Club

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    Again, awesome job!

    Thanks for the picture.

    Tom
     
  12. dhhaines

    dhhaines Hall Of Fame

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    timmmaaayyy2003 looks good.

    One question though, how far are you from the your local stations transmitters ?
     
  13. dodge boy

    dodge boy R.I.P. Chris Henry

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    Pretty Slick....
    How far are you from the stations?
     
  14. smiddy

    smiddy Tain't ogre til its ogre

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    Nice design. I have put together similar antenna in the past.
     
  15. sweep49

    sweep49 Legend

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    Jul 15, 2008
    SW GA
    By gosh that looks a lot like my CM4228 after I removed the directional screen. Don't have the VHF rods on it however. Nice job.
     
  16. rlgold88

    rlgold88 Godfather

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    Aug 30, 2006
    The top and bottom X or (where the wires cross) Should they be touching or not if I am using Non coated 10gauge wire?
     
  17. Scott in FL

    Scott in FL Godfather

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    Mar 18, 2008
    They should not touch. Even if you're using insulated wire you should still try to keep the two wires apart by a 1/4 inch or so where they cross. Have a look at this picture and you can see how Channel Master keeps the wires apart: http://www.solidsignal.com/prod_display.asp?PROD=SCM4221A&xzoom=Large#xview

    Looks like a CM4221 with the reflector screen removed: a 4-bay bowtie antenna.
     
  18. hasan

    hasan Well-Known Member

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    Ogden, IA
    I love RF experiments!

    This is basically a 4 bay bow-tie ....performance could be improved significantly with a reflector screen behind the bow ties. I like the modification adding a VHF dipole at the feed point. It does introduce matching issues and will modify the bow tie antenna pattern somewhat, but the key is:

    1. It's cheap
    2. It's fun
    3. It worked!!!

    Congrats on your efforts and thanks for posting your little RF experiment.
     
  19. hdtvfan0001

    hdtvfan0001 Well-Known Member

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    Your real last name doesn't happen to be Popeil by some chance? :D:lol:
     
  20. Nick

    Nick Retired, part-time PITA DBSTalk Club

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    The...
    Looks similar (not simular) to several experimental home-brew antennae I fabricated as a kid back in the day. There is very little new under the Sun, just variations on a theme, modifications and improvements.

    I once made a bathroom phone with coathanger wire, and a tv remote out of a Prince Albert tobacco can, back before there were tv remotes.

    The greatest 'discovery' for youse guys is that you don't always have to get your stuff ready-made at RS or BB.
     

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