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fweedon
Charging
Charging


Joined: 08 Mar 2010
Posts: 2

PostPosted: Mon Mar 08, 2010 6:59 am
PostPost subject: antennas
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Why is there a long antenna on some of the belt cp and then there arre short ones on others
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pjdog
Extreme 3D
Extreme 3D


Joined: 12 Jan 2010
Posts: 2073
Location: Hudson, Florida, USA

PostPosted: Mon Mar 08, 2010 7:12 am
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Long antenna’s are for like 72 MHz if in the USA. The short antenna’s are for 2.4 GHz. 2.4 is better I think. The antenna doesn't have to be wrapped around anything so it doesn’t get caught in the gears or blades and there’s no interference at the field.

Just my opinion.
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tombo242
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Joined: 04 Nov 2008
Posts: 4718
Location: Santo Estêvão, East Algarve, Portugal. Now 82, but still feels 22.

PostPosted: Mon Mar 08, 2010 7:17 am
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Hi fweedon,

The aerial length depends on the frequency on the Tx/Rx, the higher the frequency the shorter the wavelength so the shorter the aerial. This can vary from around 1m for 27mHz down to 5~6cm for 2.4gHz.

Good to see you asking the question instead of continuing to wonder about it.
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Dumb Thumbs
Extreme 3D
Extreme 3D


Joined: 01 Jan 2008
Posts: 892
Location: USA, N.J., Middlesex county

PostPosted: Mon Mar 08, 2010 9:52 am
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tombo242 wrote:

Good to see you asking the question instead of continuing to wonder about it.


Or worse yet, if he just cut the antenna wire without knowing any better Wink
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tombo242
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Joined: 04 Nov 2008
Posts: 4718
Location: Santo Estêvão, East Algarve, Portugal. Now 82, but still feels 22.

PostPosted: Mon Mar 08, 2010 10:32 pm
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Too right there D T, I never thought of that.

I suppose it could happen Rolling Eyes .
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fweedon
Charging
Charging


Joined: 08 Mar 2010
Posts: 2

PostPosted: Tue Mar 09, 2010 9:15 am
PostPost subject: belt
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Thanks I did not cut it it is a 2.4 Thanks again
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