http://www.youtube.com/watch?v=dhtvLhPBYfU
Testing the OpenLRS UHF system. More specifically testing the openLRSng firmware with two receiver modules. One is programmed as a transmitter with leds, a switch and speaker added.
The stock rubber ducky antennas are used for the test. No doubt better range could be had with different antennas.
More info here: https://github.com/kh4/openLRSng
and here: http://www.flytron.com/openlrs/146-openlrs-receiver-v2.html
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Out of the box, ease of use, FrSky.
Price, and hackability. OpenLRS.
Absolute range in open air? It would only be fair too add the 7W booster (from flytron) to the OpenLRS system. Also make good antennas for each. Then you would have a stupid amount of range (20km+) for both systems, more than anyone would ever need.
Both are excellent and judging from other reviews, of other products etc. I would say the best in their classes.
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for now am doing not so far fpv i will keep my gear for now
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It's the best antenna you can use for UHF:
http://team-blacksheep.com/products/product:42
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Plus, it's not a very good recommendation. It's not the best antenna, and if you were to use it, don't use it for both ends.
First, you can find this antenna, original for less than $10 on ebay. Same for the Nagoya.
Second, a dipole is a better antenna. A dipole should also be used on the receiving end (regardless of the transmitter antenna), or a turnstile if you want better polarization.
Dipoles are cheap, (very) easy to make, and provide the best all around performance (its significantly better than the nagoya/diamond actually).
Yep they look a little odd on the transmitter, but they're better for range and even polarization. (turnstile is even better for polarization, but expensive/hard to make, and doesn't provide as much range)
You can find more information on how to make dipoles here: http://fpvlab.com/forums/showthread.php?3156-433MHz-Half-wave-dipole-for-LRS
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