When installing an antenna in the roof space or attic it is possibly much easier dependent upon the actual layout to route feeders into the attic.
Mounting ocf dipole in attic.
The infamous attic dipole.
I ve had a fan dipole in the attic for 17 and 20 for years.
I have antenna restrictions ccr s say none but used some blackmail.
Radio antennas that are located externally are subject to the rigours of the weather.
Protection from the elements.
I hung the balun on a beam in the attic.
1 response to hidden attic dipole antenna installation.
2016 10 03 at 19 24 k.
That is the way to go indoor as much wire as you can and a smartuner.
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You can a 50 linear loading line in each leg of the dipole without loss.
There is a vent about a foot away and i ran the wires out of it.
Even in what may be.
In other words an 80 meter windom 137 feet long would have one leg 45 667 feet long and the other leg 91 333 feet long.
Using a ladder and a strap stapler i ran the wires to the edge of the roof and then in as large of a pattern as possible.
Bracketts from the previous antenna which broke still on the chimney.
Replaced with a smartuner auto coupler and dipole configuration and get all bands.
Mac af4ps fp 51 note.
A half wave dipole is usually fed at its center because this is where maximum current occurs.
The better your antenna the more success you will have making contacts.
Well after a bit of reasearch i came up with the idea of using the ocf dipole 7 band 300 watts in a loop.
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Ridgeline ocf dipole layout physically shortened dipoles are practical too for an attic antenna.
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This was installed at a previous qth i will be the first or millionth remember i m from fl to affirm that the antenna is the determining factor for success when it comes to one s station set up.
The modern common windom antenna is not an original single wire fed windom but rather an off center fed or ocf two wire feed dipole.
2m j pole in attic.
Coax hookup for vertical uhf vhf vertical antenna at the base of the chimney.
Worked europe africa middle east no problem 59 with 100w.
You can build a double bazooka with the same results as a linear.
Coaxial cable or coax os the most common form of feeder.
Ocf dipole 160 6 meters balun designs ocf hybrid 4 1 1 1 balun antenna.
So need to get licensed.
Feeding the dipole at that point yields a minimum free space impedance of 70 72 ohms.
The normal windom is described as having a 1 3 length leg and a 2 3 length leg.
