nuckolls.bob(at)aeroelect
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 Posted: Wed May 25, 2016 9:54 am Post subject: My Transponder Antenna Does Not Have Balls |
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| Quote: | | These antennae are pretty cheap so if you all think that it might be best to replace the antenna with one with balls then I will do so. If not my neutered antenna will stay. |
It's true that removing the spherical tip shortened
the antenna and raised its resonant frequency . . . but
I doubt that it makes much difference from a performance
perspective. Most manufacturers put those balls on for
reducing risk of personal injury . . . kinda like those
plastic hoodies they put on ends of re-bar extending
out the top of concrete walls on a construction site.
In another instance, the spherical tip COULD be
intended to reduce coronal discharge at the tip during
transponder reply time when voltages at the tip might
be several thousand volts . . . and at altitude where
the rarified air ionizes easier.
But replacing it is probably a personal preference for
reducing the severity of the wound should anyone
inadvertently come in contact with it.
Bob . . .
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