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Old Jun 20, 2011, 04:07 PM
WBFlyer is offline
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Hello,

1.2 please!
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Old Jun 20, 2011, 04:24 PM
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Have you tried stacking these similar to the way OMM stacked cpods and (IIRC skew planars)? Now we just need our postal system rebooted...
Never tried it, but simulation show the turbine to be a good candidate for that.
Old Jun 20, 2011, 05:29 PM
BJM-Maxx is offline
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I was wondering if you do and 900 MHz antennas.
Old Jun 20, 2011, 06:41 PM
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I was wondering if you do and 900 MHz antenn
I can, a 910mhz turbine is 8.6", virevent is 8.5" in diameter, are you ready for that?
Old Jun 26, 2011, 02:16 PM
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I added some more info on my website:
http://www.truerc.net/canada/index.p...page=page&id=3

-Hugo
Old Jun 30, 2011, 02:44 PM
saucisse is offline
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Don't disturb the pilot !!!
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Girlfriend just call me saying that I received some strange antennas this morning heheh hope to do some flight test this weekend with the virevent !
Old Jul 20, 2011, 03:20 PM
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I just finished a new tutorial for the virevent:
Here

I plan to offer DIY kits, you can post your interest here.

Also, two new antenna design are born:
-A 3 blades, "windmill" lighter, more aerodynamic and cheaper.
-A 5 blades, "fan" made as an alternative to the turbine.


-Hugo
Last edited by Hugeone; Jul 20, 2011 at 03:31 PM.
Old Jul 20, 2011, 03:44 PM
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That is one of the best written tutorials I have seen on building antennas. Thanks for sharing.
Old Jul 20, 2011, 03:44 PM
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Nice tutorial, thanks! I'll make a pair as soon as I have time.

Say, can I make a Turbine by just making more blades to the Virevent? I mean, are the dimensions for one blade the same?
Old Jul 20, 2011, 03:52 PM
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Say, can I make a Turbine by just making more blades to the Virevent? I mean, are the dimensions for one blade the same?
No, dimensions and pitch angle are different. Don't worry, I'll make a tutorial for it soon.

-Hugo
Old Jul 20, 2011, 04:40 PM
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can you provide equations so I can tune for a specific freq. ?

..ps, thank you for such a great tutorial.
Old Jul 20, 2011, 05:22 PM
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A 900Mhz antenna is 8.6 inches? ugh.. that's a little big for my AXN. Are the website prices for a pair or just for one?
Old Jul 20, 2011, 09:05 PM
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can you provide equations so I can tune for a specific freq. ?
Wire diameter matter, since you don't scale the wire diameter, equations don't work.
I'll provide dimensions for other 1.2-1.3 channel tomorrow. For 2.4 and 5.8ghz the antenna is wide band so it cover all channels with good SWR. >1.5:1

Quote:
A 900Mhz antenna is 8.6 inches? ugh.. that's a little big for my AXN. Are the website prices for a pair or just for one?
Price is for a single one, yes those antennas are of low height but wide.

-Hugo
Old Jul 21, 2011, 02:09 AM
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Man that turbine is a thing of beauty. Can't wait for the tutorial.

Also would like to see 3d plots of the patterns for the "windmill" and "fan", those look easier to build
Old Jul 21, 2011, 02:39 AM
Kev.au is offline
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Anyone tested this antenna yet?. Thanks for offering a tutorial, good job.



Cheers, Kev.


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