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plane works without antenna soldered on why?

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plane works without antenna soldered on why?

Old 01-09-2008, 11:43 AM
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rcpilotny
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Default plane works without antenna soldered on why?

I took apart my mini storm launcher and going to put it on another foamy I'm building.

took the antenna and am going to solder longer one on, but i can it without in on and the props still run like the antenna was still on how can that be? I'm sure the range won;t be that great but it's weird how it works with it off.



PS I'm going to put a longer one on it so i have a range of about 600ft now.
Old 01-09-2008, 01:05 PM
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exeter_acres
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Default RE: plane works without antenna soldered on why?

longer antennas do not increase range.........
Old 01-09-2008, 03:57 PM
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rcpilotny
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Default RE: plane works without antenna soldered on why?


ORIGINAL: exeter_acres

longer antennas do not increase range.........

well reception then
Old 01-09-2008, 04:12 PM
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Gulliver
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Default RE: plane works without antenna soldered on why?

there is an optimum antennae length for each receiver and going either longer or shorter will gradually decrease the range or reception capability.
Old 01-09-2008, 05:36 PM
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tadawson
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Default RE: plane works without antenna soldered on why?

To a point, but longer gets better at some point. The issue is that the antenna needs to be a length that corresponds to a wavelength of the frequency in question. IE, if your antenna is 1/4 wave, a little longer will be de-tuned, and be bad, but twice as long (half wave) will give a better signal . . . should be by about 3db (double the signal . . .) and so forth as you get longer.

Unfortunately, you can't tow two miles of wire, or we would have insane range . . . .

- Tim

ORIGINAL: Gulliver

there is an optimum antennae length for each receiver and going either longer or shorter will gradually decrease the range or reception capability.
Old 01-09-2008, 05:49 PM
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Default RE: plane works without antenna soldered on why?



Fly it with the same length antenna ..........ONLY. Best protection against glitches & motor noises.

Some transmitters and receivers can be damaged if the antenna is not used.

Rich
Old 01-09-2008, 07:19 PM
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rcpilotny
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Default RE: plane works without antenna soldered on why?


ORIGINAL: tadawson

To a point, but longer gets better at some point. The issue is that the antenna needs to be a length that corresponds to a wavelength of the frequency in question. IE, if your antenna is 1/4 wave, a little longer will be de-tuned, and be bad, but twice as long (half wave) will give a better signal . . . should be by about 3db (double the signal . . .) and so forth as you get longer.

Unfortunately, you can't tow two miles of wire, or we would have insane range . . . .

- Tim

ORIGINAL: Gulliver

there is an optimum antennae length for each receiver and going either longer or shorter will gradually decrease the range or reception capability.

that's what i did it's twice as long
Old 01-10-2008, 03:45 PM
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Gulliver
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Default RE: plane works without antenna soldered on why?

Good point. I didn't think of that.

I am told however that some receivers have built in base loading which makes the lengths hard to figure out.

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