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Half power beam width: 55° (horizontal and vertical)
Radiation efficiency: 83.5%
Diameter of large disk : 5.94cm
Diameter of small disk: 2.46cm
Features:
Good radiation efficiency. Most FR4-based patches have terrible efficiency because FR4 is very lossy at 5.8 GHz
Good axial ratio, not just directly perpendicular to the patch but also off-center Note: The PCBs must use 1.0 mm thickness FR4 material
Package included:1 x Realacc Triple Feed Patch-1 5.8GHz 9.4dBi Directional Circular Polarized FPV Antenna 1 x Extended cable1 x SMA Feamale to RP-SMA Male adapter connector
I got black version, 2x units. I usually do and tune all my antennas myself, but this time decided to test what we can get for cheap ;-)
Looks like they used wrong PCB material or mixed something with dimensions - antennas are usable for lower 5.8G frequency range (5600-5750 or smth), going higher - one antenna is barely usable (usually on such "patch-type" antennas axial ratio is very bad, when you go out of resonant frequency), another is unusable at all.
So, if you fly on smth like C4 (5705) or something this should be fine. But for higher frequencies...
Actually, fixing "too high" resonant frequency is easy - just put some lacquer/paint, this would shift frequencies down, but with "too low" - not much you can do except cutting/sanding boards which is really time consuming.
I got black version, 2x units. I usually do and tune all my antennas myself, but this time decided to test what we can get for cheap ;-)
Looks like they used wrong PCB material or mixed something with dimensions - antennas are usable for lower 5.8G frequency range (5600-5750 or smth), going higher - one antenna is barely usable (usually on such "patch-type" antennas axial ratio is very bad, when you go out of resonant frequency), another is unusable at all.
So, if you fly on smth like C4 (5705) or something this should be fine. But for higher frequencies...
Actually, fixing "too high" resonant frequency is easy - just put some lacquer/paint, this would shift frequencies down, but with "too low" - not much you can do except cutting/sanding boards which is really time consuming.
I got black version, 2x units. I usually do and tune all my antennas myself, but this time decided to test what we can get for cheap ;-)
Looks like they used wrong PCB material or mixed something with dimensions - antennas are usable for lower 5.8G frequency range (5600-5750 or smth), going higher - one antenna is barely usable (usually on such "patch-type" antennas axial ratio is very bad, when you go out of resonant frequency), another is unusable at all.
So, if you fly on smth like C4 (5705) or something this should be fine. But for higher frequencies...
Actually, fixing "too high" resonant frequency is easy - just put some lacquer/paint, this would shift frequencies down, but with "too low" - not much you can do except cutting/sanding boards which is really time consuming.
Great directional antenna that can be used both both rhcp and lhcp. For optimal performance you will also need 50 ohm terminator that is not included in the package: http://bit.ly/2CQwzM9
Great directional antenna that can be used both both rhcp and lhcp. For optimal performance you will also need 50 ohm terminator that is not included in the package: http://bit.ly/2CQwzM9
Great directional antenna that can be used both both rhcp and lhcp. For optimal performance you will also need 50 ohm terminator that is not included in the package: http://bit.ly/2CQwzM9
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
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Q:
Does this include the 50 ohm terminating resistor?
Does this include the 50 ohm terminating resistor?
depends which type you have on your quad, so if you have LHCP on your quad use the LHCP side and if you have a RCHP antenna on your quad use teh RCHP side
depends which type you have on your quad, so if you have LHCP on your quad use the LHCP side and if you have a RCHP antenna on your quad use teh RCHP side
My antenna on Drone is RHCP? what happens if I connect to same on patch but do not put a 50ohms terminator on the LHCP?? ... does it still work? or you HAVE to buy a 50ohms terminator???
My antenna on Drone is RHCP? what happens if I connect to same on patch but do not put a 50ohms terminator on the LHCP?? ... does it still work? or you HAVE to buy a 50ohms terminator???
dependerá también mucho del vtx y la potencia de emisión, además de la sensibilidad del receptor, no es lo mismo uno de -92, que uno de -98, por eso es difícil decir una distancia, ya que para uno pueden ser 600m y otros 6km
It will also depend a lot on the vtx and the emission power, in addition to the sensitivity of the receiver, it is not the same one of -92, than one of -98, so it is difficult to say a distance, since for one can be 600m and other 6km
Si, porque normalmente son, SMA o RP-SMA, y viene con un adaptador para los dos, confirmando que son de 5,8Ghz, que suelen ser casi todos, puedes usarlas
Yes, because they are usually, SMA or RP-SMA, and comes with an adapter for both, confirming that they are 5.8Ghz, which are usually almost all, you can use them
Answered by TheGamma on 12/01/2022Helpful (0)
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