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2.4Ghz arial wire strangeness

2.4Ghz arial wire strangeness

Old 04-20-2015, 01:54 AM
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Default 2.4Ghz arial wire strangeness

I just got this sanwa/airtronics RX
The arial wire doesnt seem right, shouldnt the last apporx 2cm be unshielded or stripped back, as per my other samwa rx that came with the transmitter.

If the whole arial is unsheilded, then ist just far to long for 2.4

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Old 04-20-2015, 06:12 AM
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All of the product images look like this. I'd say there is nothing wrong with it, and it's how it should be.

Maybe because it's waterproof.
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Old 04-20-2015, 07:18 AM
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I have three of them. They are all like that. Run it.
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Old 04-20-2015, 10:59 AM
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As far as I know, all of the cheaper FHSS-2 Receivers from Airtronics come like that. Only the more expensive/higher end receivers use the coaxial wire.
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Old 04-20-2015, 11:08 AM
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No problem. There are receivers with just a normal wire as antenna, this is most of the time a 13 or a 26cm wire.
Most later model receivers do come with a shielded cable of an not important length with a 31mm stripped endtip which is the actual antenna.
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Old 04-21-2015, 12:26 AM
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So I guess the antennae isnt a tuned length ?
So I could cut it in half, its far to long.
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Old 04-21-2015, 12:37 AM
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I wouldn't cut it. Just put coil it up in the reciever box.
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Old 04-21-2015, 02:40 AM
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Do NOT cut the antenna.
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Old 04-21-2015, 03:30 AM
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Originally Posted by 1101 View Post
So I guess the antennae isnt a tuned length ?
So I could cut it in half, its far to long.
Every antenna is tuned. The shielded one only at the stripped endtip and the normal wire on its total length.
The wave length of 2.4ghz is about 12.5cm, all antenna's are mostly an half or a quarter length of the wave length, with the 2.4ghz the stripped enddtip of 31.5mm it is a quarter. In case of a normal wire they are the wavelength or sometimes dubble the wave length.
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