Copper Foil Sheet Adhesive Antenna Ground Plane

After peeling off an inch at a time i found a good match at 14 9 feet.

Copper foil sheet adhesive antenna ground plane.

The final coil for 17 and 20 meters contains 18 9 feet of foil. It would be applied on the inside of the roof so they would intersect at the antenna s mounting hole where the foil would connect to the ground side of the mount. Radio telecommunications antenna reflectors. The only requirement for the ground plane is that it conducts.

A reasonable discussion about radio antenna ground plane issues. 0 010 to 0 020 copper sheet will work fine. These antennas are essentially half a dipole with the other half being the electrical mirror of the antenna on the other side of the ground plane. Essentially the kit was a roll of about 40 feet of 2 inch wide adhesive backed copper foil.

Many antennas have a ground plane built in but in particular magnetic mounted antennas often kitted with mobile boosters require one be provided. Firestik fg2648 b two foot no ground plane cb antenna kit black. Only 6 left in stock order soon. 300 ft rg58 coaxial cable black 50 ohm 20 awg ccs solid conductor foil shield braid coaxial cable matv rf signal black copper clad steel antenna digital hdtv signal line by nac wire and cables.

For example on a fibreglass roof mount the antenna on top of the roof and place some adhesive backed metal foil underneath on the inside of the roof. The more conductive it is the better. If this is not possible copper or aluminium foil can be used to create a shaped ground plane underneath the antenna. Yes a ground plane will enhance performance and may save you from a lot of trouble shooting if done right the first time.

In the field of radio telecommunication a ground plane structure or relationship exists between the antenna and another conductive reflective surface which permits the antenna to function as such e g forms a reflector or director for an antenna. The tash antenna performs similarly to a quarter wave vertical at most frequencies. Earlier tests indicated a need for a coil with something longer than a quarter wavelength of wire in a spiral ground plane so i began with 15 5 feet of copper foil enough foil to trim for 17 meters. Professional am radio broadcast antennas use lengths of copper wires buried just under the ground radiating out from the base of the antenna to make the earth more like an ideal ground plane.

The bigger it is the better.