The only concern with attic mounted antennas is the space available to you for mounting.
Antenna attic ground plane gauge.
Dipole and long wire antennas can also be used with mobile outdoor style auto tuners feeding them in an attic space.
16 gauge would be fine any thinner and you might be pushing it.
Half dipole antennas ground plane monopole and marconi antennas are different they have parts that must be electrically grounded.
In my opinion the thicker the better.
Here s part of my setup.
Grounding tv antenna and metal porch and resolving ground rod issues.
My house ground rod is not to far from where the antenna will go but the copper will have to go out and down one side of my house.
Preferably you want it to be shielded.
I want to cut the cord and put a antenna in my attic.
This antenna has all the reception power of an outdoor antenna but features a curved metal frame of reflectors that are designed for fitting easily into smaller attic spaces.
I have no idea how to ground it though.
I used good 10 gauge speaker wire on mine.
Signal strength from distant vhf repeaters does not seem to be affected even when the roof is wet.
You will need a peak in your attic that is tall enough for the antenna to fit.
The kb9vbr 2 meter j pole antenna is 69 inches tall overall.
The wood structure is pretty transparent to rf energy.
I have several vhf ground plane and discone antennas in my attic.
Theses are sprout antennas like the one on a car and wire antennas for showrt wave and ham radio.
Other locals are using screwdriver style mobile hf antennas that can work with a proper ground plane installed as a base below them.
Antenna mast grounding clamp ancable 2 pack electrical ground rod clamp 1 2 to 1 inch for antenna coax cable tv tower electronic fence etc 4 4 out of 5 stars 7 9 99 9.
I have read many mixed opinions on grounding in the attic so i have decided to ground just to be safe side.
An obvious solution if you need concealment and have access to a space like an attic.
If the top of the antenna touches the walls or roof the performance may be affected slightly.
