cloverleaf antenna

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cloverleaf antenna

Postby francoishaha » Tue Apr 03, 2012 5:00 pm

I want to know if a 5.8ghz skew planar antenna have a max lenght?
Cause i want to make a long ground antenna to get better signal.
I got 20 ft of rg58 cable
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francoishaha
 
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Re: cloverleaf antenna

Postby RCModelReviews » Tue Apr 03, 2012 7:30 pm

You should keep the length of cable between the antenna and the receiver as short as possible because at 5.8GHz, much signal can be lost in anything other than a short length.

My SP and CL antennas connect to my receivers through no more than 75mm of coaxial cable -- just enough to give them at least wavelength of clearance. I then run my power and AV wires down my pole because these can be much longer before any issues are created.
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Re: cloverleaf antenna

Postby francoishaha » Tue Apr 03, 2012 10:55 pm

Thanks :)
the probleme is that i cant hang the antenna high at least if i climb in a ladder, cause i use fatshark google with integrated receiver. :(
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Re: cloverleaf antenna

Postby RCModelReviews » Tue Apr 03, 2012 11:40 pm

The answer is: Stilts! :D
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Re: cloverleaf antenna

Postby francoishaha » Wed Apr 04, 2012 2:07 am

lol
or maby find a receiver that is compatible with my transmitter. I use the 5740 frequency, there should exist some receiver that are on same frequency
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Re: cloverleaf antenna

Postby francoishaha » Wed Apr 04, 2012 4:23 pm

Right or left polarisation should be the same on CL and SW antenna or it dosent matter?
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Re: cloverleaf antenna

Postby RCModelReviews » Wed Apr 04, 2012 9:29 pm

It should be the same for both ends.
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Re: cloverleaf antenna

Postby francoishaha » Wed Apr 04, 2012 10:44 pm

Thanks for your help, much apreciated.

one last question: if i find a video receiver that use the same frequecy as my transmitter (example 5740), it should work right?
Because i realy like the ground station you suggest in this video:
http://www.youtube.com/watch?v=tYhYp2Z_Nr4&list=FLtAq6IHiWEyC6eZXkWjqL1w&index=12&feature=plpp_video
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Re: cloverleaf antenna

Postby RCModelReviews » Thu Apr 05, 2012 1:03 am

I'll be publishing the design for a low-cost receiver (about $15-$20) that will match the FPV backpack frequencies (5645-5945). This will make low-cost diversity quite practical.
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Re: cloverleaf antenna

Postby francoishaha » Thu Apr 05, 2012 2:09 am

Amazing 20$ diversity !!! Can't wait to see how it's made. I stay tuned!
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