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Tennis Balls - Firestik Antenna Company Home Page

A tennis ball added to a transmitting antenna will add capacitance, which, on a previously tuned antenna, will cause a resonant frequency shift and a change in the standing wave ratio (SWR) at that frequency. And, as the tennis ball is moved up or down the antenna the effect will change the SWR.

Using a tennis ball to raise a wire antenna - YouTube

Sometimes telescoping squid poles are just too bulky to carry around. But if you're going somewhere where there's trees a tennis ball and fishing line can ...

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tennis balls on cb antenna | Tacoma World

If the antenna is mounted in a spot where it hits the body the tennis ball acts as a bumper.

Antenna / Vehicle Protection...Tennis Balls Ok?

GET a tennis ball. PUT it on the antenna. GO for a drive, through progressively denser trees and brush. SEE if there's any new communication problems that crop up. Also SEE if the tennis ball will provide adequate protection for the vehicle. Have you considered putting the antenna on the front bumper?

A Compressed Air powered Antenna Launcher

This Tennis Ball Antenna Launcher is a simple device consisting of an air storage chamber, valve and barrel. This model uses readily available parts - it should be possible to stop at one or two well-stocked hardware stores and a Radio Shack on the way home from work one day, pick up all the parts Sprinkler valve, pressure gauge, fill valve.

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Amazon.com: Customer reviews: Tennis Ball Antenna Ball Topper

5.0 out of 5 stars tennis ball antenna topper. Reviewed in the United States on December 14, 2010. Verified Purchase. This item was exactly as described. It was ...

What’s up with tennis balls on truck antennas? : Charleston

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Can someone enlighten me what this tennis ball rod does ...

It’s a 102” whip CB antenna. Folks used to put a tennis ball on them to keep them from smacking the body of the vehicle, but now they do it to make it flop all over just because. 75

Mobile - Anyone else's wife disapprove of your antenna choice ...

Tennis Balls or any type of cushion, even a handgrip from say a Lawn mower handlebar can add a level of capacitance - well, I can't say it truly as a capacitor, but the effect is similar. The material is an insulator, which will generate a "bump" in the field as it propagates thru the antenna and also to free air.
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