50 ohm (or 75 ohm) coaxial wire with copper shielding FM receiver with a coaxial connector 3/8-inch copper tubing Wire cutters Hacksaw Soldering equipment
Divide 468 by the frequency to which you want to connect (e. g. , 468/108MHz would become 4. 3). Divide the resulting number by 2 (e. g. , 4. 3/2 would become 2. 15). Multiply the resulting number by 12 inches (30. 5 cm) to find the antenna length (e. g. , 2. 15*12 inches would become 25. 8 inches).
You can use your wire cutters or a hacksaw to do this.
For example, if your antenna is supposed to be six inches per your calculations, you’ll remove three inches of shielding. You’ll need to remove the copper shielding during this process. The easiest way to do so is by making a shallow incision with the hacksaw all the way around the shielding and then attempting to strip it off from there.
Again, if you’re using a six-inch antenna, the copper tubing will be three inches.
The fewer obstructions between your antenna and the nearest FM station, the stronger your signal will be. Your coaxial cable may be stiff enough to stand on its own without needing support, but you can use stables or any adhesive to prop up your antenna as needed.
Speaker wire is not an ideal solution to long-range issues. If you’re having trouble receiving a signal at all, you should try using coaxial cable instead.
10 feet of speaker wire FM receiver with clamp-and-hold (or post) FM connections Wire strippers
FM receivers can have either clamp-and-hold connectors or post connectors. Clamp-and-hold connectors resemble literal clamps, while post connectors resemble knobs with exposed metal between them and the receiver itself.
If there’s only one FM connection, you can twist the two bare wires at the bottom of the “T” together to form one wire that can connect to the clamp or post.
You may have to move the FM receiver in order to make this possible.
