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Thread: Need help with a stealth antenna

  1. #1
    Kilroy08 W3MPS's Avatar
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    Need help with a stealth antenna

    Ladies, gentlemen. After a long absence, I've gotten the itch to put my station back on the air.

    Here's the problem, I'm stuck living in a condo. Also, it's on the ground floor.

    I *cough* have access to the roof and there's a drain pipe rather conveniently located next to my unit.
    And the building is three stories, at least I'll get some elevation out of it.

    I'm considering a long wire tacked along the parapet on the roof and running a feeder concealed in the drain pipe.
    Or make the drain pipe the vertical leg of an inverted L.

    For right now, I'm limited to 10 meters. Ideally I would like to design things with an eye towards the other HF bands
    as I am working on studying to upgrade my license.

    Any guidance is greatly welcome in my latest pursuit of black ops shenanigans.

  2. #2
    Orca Whisperer PA5COR's Avatar
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    http://pa0fri.home.xs4all.nl/Ant/Ant...al.htm#PLATDAK

    Have a lookie here, in Dutch but with piccies to give you an idea ;)

    Do scroll down on that page...
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  3. #3
    Master Navigator HUGH's Avatar
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    A wire up the drainpipe would be quite good but probably suffer from EMC from all the gadgets running in the condo. I suggest two parallel 75ohm coaxes to the roof giving you a waterproof 150 ohm feeder.

  4. #4
    Kilroy08 W3MPS's Avatar
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    Quote Originally Posted by HUGH View Post
    A wire up the drainpipe would be quite good but probably suffer from EMC from all the gadgets running in the condo. I suggest two parallel 75ohm coaxes to the roof giving you a waterproof 150 ohm feeder.
    Interesting, I had not considered that.

    I turned on the radio with a cheapie "10 meter" mag mount hooked up to it. There's a fair amount of RF noise in the place. We shall see how it goes.

  5. #5
    Orca Whisperer W3WN's Avatar
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    Do you have access to the roof? A hamstick or equivalent attached to a vent pipe would be virtually invisible.

    Are you allowed a flagpole?

    How about a front porch or patio? A potted climbing plant, with a trellis that just HAPPENS to be about 4 feet high, can be a great disguise for one or more hamstick type antennas.
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  6. #6
    Tiki Bearer
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    Is your car parked nearby? Mount an antenna on the car and run a length of coax in through the window when operating...

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