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-   -   Antenna mod (http://tinyrc.com/forums/showthread.php?t=17147)

brwlf 01-05-2004 06:47 AM

Antenna mod
 
Does anyone have an accurate measurement of the actual length of the antenna wire? I know the length of the wire if fairly crucial and I was wanting to modify my antenna mount so the screw would not be necessary. Sort of like a 10th scale RC w/ plastic tubing and a soft flexible wire protruding out the top.

BC have you broke it down that far or can you?
Slugg, how about you?

Has someone already done this and posted it? I could not find one and am tired of looking!!

ax0n 01-05-2004 07:13 AM

on these R/C cars, antenna length is not horribly crucial. On some applications, such as CB radios and HAM, antenna length is crucial for optimum range. You want either a quarter-wavelenth or half-wavelenth antenna. 27 MHz has a wavelenth of something like 35 feet, so for a quarter-wave antenna, the car would need a piece of wire hanging out of it that's about 9 feet long!

I'm afraid for most R/C cars, longer is better to a certain extent, but the actual antenna length on these cars is probably not scientifically calculated-- very arbitrary. If someone feels like they can suggest otherwise, feel free to debunk me. Maybe you get some advantage with a 1/32 wavelength antenna over one that's a little longer but I doubt it. BTW, a 1/32-wave antenna would be about 13 inches long, which is longer than an xmods antenna by a long shot.


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