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This circularly polarized omnidirectional antenna ideal for use on your FPV video transmitter. Combined with another Skew Planar Wheel on your receiver, it offers coverage in all directions, with moderate range (around 2 km). Combined with a helical on your receiver provides around 6 km range. Antenna is Right Hand Circular Polarized (RHCP), and is supplied with an SMA straight male connector, and a 90-degree angled SMA male-female adapter. If your video Tx or Rx uses an RP-SMA connector, then an SMA female - RP-SMA female adapter would be needed (not included). Antenna is made of MIG wire coated with three layers of metal-free paint, and the weld is reinforced with epoxy. The mast is flexible, to protect the video SMA connector on your video Tx in the event of a crash. See SPW58 Reflection Paramter chart for bandwidth. This antenna is designed to be centered at 5800MHz, and attempts to cover the channels from 5645 to 5945 MHz. A Return Loss <-13dB is warranted across this frequency range, which means than >95% of the power is coupled to the antenna. See Directivity chart for radiation pattern. This antenna features a typical omindirectional radiation patter, uniform at 360 degrees in the horizontal plane, and with a radiation null at the axis in the vertical plane. Nominal gain is 2.45dB. Opposite polarization rejection (see copolar vs. crosspolar chart): This is especially important in circular polarization. Put simply: the difference between the copolar component (right hand circular in this case) and crosspolar component (left hand circular) is the attenuation of the captured reflected signal that we want to avoid to reduce multipath. In these antennas cross polar attenuation is greater than 10dB in all cases, which means that the reflected signal will reach the emitter attenuated at least 10dB with respect to the desired signal, which is great to prevent reflected signals from interfering with the direct signal during FPV.
J**
Great antenna
I’ve been flying FPV for a long time now 7 years off and on. When these antennas came out I believe they were $40+ each and well worth it. I’ve used so many different antennas over the years. In my opinion they perform better than 95% of any I’ve tried. They are incredible antennas and super hard to find. Get a couple while you can. You won’t be disappointed.
J**L
I was using the DJI toadstool type antennas that came ...
I was using the DJI toadstool type antennas that came with the FPV video kit on my Phantom 2 and replaced with this antenna on the transmitter and their HELIAXIAL58 Helical Axial Mode 5.8 GHz FPV Antenna on the receiver and so far haven't noticed any difference in range with this antenna over the DJI antenna (on the transmitter side).It doesn't stick down as far as the DJI antenna and that could be one of the reasons as the gimbal and camera block the line of sight signal when the camera is point back at you. Went about 800 feet before some glitching in the video signal.
S**E
These may not be the best choice for those who want to race
These may not be the best choice for those who want to race, or push their skills to the extreme. Of the 5 or 6 different brands of circular polarized antennas I've used these got bent and beat up in crashes the fastest. I don't like them.
I**R
great antenna when paired with their helical as well
great antenna when paired with their helical as well...i got double range if not more and very clear reception...solid quality build also, very good materials.....a little expensive but worth it if you want great range and video quality
C**E
Not Impressed
I purchased this antenna to replace the clover antenna provided with my DJI AVL58 FPV. For the cash in the upgrade, I can't tell the difference. That's a lot of money spent on nothing.
E**A
Awesome little antenna
This is an awesome little antenna. It does work better when it is not obstructed by your copter, and if your receiver is to the side of the antenna (Not above or below). I like how flexible it is, and how well it works. I did review this antenna with a few others to find my best configuration, and this one was the best. https://www.youtube.com/watch?v=EqDj_4g9FTw
R**.
If you don’t crash it might be a decent antenna
After one not very hard crash this antenna broke it’s not durable at all
J**S
Circular polarization must be used on both the Tx and Rx device.
I replaced the monopole antenna on the 5.8 GHz receiver and increased the range by 2-3 times. Plus, no dropouts or fading due to phase shifts, etc. when using this antenna. The Part 15 video transmitter was using a Skew Planar antenna but the receiver was supplied with a monopole; an untenable situation.
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