Copper Talk » Open Forum » Archived Messages » 2002 » Archived Messages 07/01/2002 to 07/31/2002 » Unusual radio antenna « Previous Next »

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Hoosier Cardinal
Posted on Wednesday, July 03, 2002 - 4:41 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

On a few of my varied ramblings in my area i saw a rather odd antenna setup near me once. It was what appeared to be a dipole or long wire antenna, 2 wires each, strung up between 2 100' poles with 2 wires leading down to a very tiny shed like structure (looked like one of those old time outdoor toilets used back in the early days) that sat in between the 2 poles. There was a small chainlink fence around the equipment "shed" also. It actually looked like an amateur radio antenna setup of some kind but the setups ive seen were nowere near a house of any kind. The last one I saw was over in NW Ohio alongside a road out in the middle of a field. Then I saw another down around the Lima Ohio area too so that makes 2 ive sen so far. Like I said this is no Ham setup but something else.. Ive asked several local ham guy but none of them seemed to really know what they are used for.. A sidenote; The one in NW Ohio was actually transmitting something because when I drove past I had my radio on in my car and the antenna wiped out all 40 channels which I thought was wierd! FAA, USAF, military, antenna perhaps??? Something left over from the cold war defense programs?? I dunno!!!!! :-( Bruce are you out there????
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bruce
Posted on Wednesday, July 03, 2002 - 7:31 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hummm sounds like the ailens have made contact!
any chance you could get a photo maby pop com would know .... all joking is sounds military
hey if you get a photo send it to me at

wa4gch@yahoo.com
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Insider
Posted on Wednesday, July 03, 2002 - 8:08 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Sounds like it could be for shortwave perhaps--just a guess... Could you tell what was being transmitted, or did it just generate unintelligable interference to your radio?
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Radiodude
Posted on Wednesday, July 03, 2002 - 11:17 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

More likely a beacon for a airport. They are called NDB (Non directional beacon} They are located by most airports. If you need anymore info contact me.
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Tech833
Posted on Thursday, July 04, 2002 - 1:46 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Did it look something like this?: http://members.rogers.com/wiecek6010/mvc-700.jpg

You have probably seen aviation beacons. Most aviation beacons operate in the frequencies below the AM broadcast band and usually transmit a 2 or 3 letter CW sequence using audio tone modulated AM.

The FAA has operated LW beacons for many, many years as a method for planes to navigate to an airport approach. The aviation beacons are almost always located along the runway approach to an airport. Although the beacon can be located 5 or more miles from the approach, most are within a mile of the end of the runway.

For more information and pictures, visit: http://members.rogers.com/wiecek6010/pict.htm
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dimstar
Posted on Thursday, July 04, 2002 - 12:48 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

A Beverage antenna?
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Hoosier Cardinal
Posted on Thursday, July 04, 2002 - 4:09 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Ill get a pic and send it to Bruce. I think it might be a FAA antenna but i dont really know.. The whole setup pretty much sets in the open and is not really near any large airport and the relay shed is the only thing that is fenced in that ive seen.......
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Radiodude
Posted on Thursday, July 04, 2002 - 10:43 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Yup it is a beacon antenna for sure Somewhere in the 150 to 500kc range They send slow CW usally 3 letters over and over
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2ec837
Posted on Saturday, July 06, 2002 - 11:56 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Maybe it's a TIS site.They provide tourist info and construction updates.They transmit in and just below the AM broadcast band.These are fun to DX.
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Hoosier Cardinal
Posted on Sunday, July 07, 2002 - 1:26 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Im pretty sure its a beacon. I forgot to mention there is a small county airport just about 3 miles away or so but its not that big at all. Just a strip to land and takeoff on and thats it! When i can ill drive over there when i go to the radio shop thats in the town by were the antenna is and take a few pics..