Originally Posted by
The DB
I would not recommend using an air coil in a vehicle, the metal next to it will throw off its resonant frequency and most people don't have either the knowledge or equipment to account for this.
I would recommend the slide on ferrite beads, if you have access to the end of the coax. I use shrink tubing to hold them in place when I use them, although zip ties that aren't over tightened work well as well. If you have no other option, snap on ferrite beads work as well, although they tend to be larger in diameter because of the snap on mechanism. With ferrite you can use as many beads as you want. I would recommend six or more. The specific beads you use are dependent on the diameter of the coax.
The DB
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