Although Hirose rate the U.FL at 30 cycles, we fond by testing thousands of them that they last longer than a that, especially the male side (vtx side.) It is not something you should worry about if the U.FL “snap-in” well.
None are better than the other. A RHCP antenna is described as a RHCP “dominant” where most of the waves (97%+ in our case) are RHCP waves. Same for the LHCP antenna. As along as both Tx and Rx antennas are either RHCP or LHCP most of the signal pass from one to the other. If an odd RHCP to LHCP antenna combination is used, you are left with only 3% signal, you’ll still have video, but not a pretty one. Read our blog page about this subject.
On paper, it is 3% more range. However, a gain specification with precision of 0.01 is hard to believe. Gain value change slightly with frequency and many other factors so a manufacturer using such precise figure can hardly be taken seriously. It’s like measuring cheese with a micro-meter.
For omnidirectional passive antennas, there is only one way to increase the gain: flattening the radiation pattern. This means that when pushing the range limits you will lose signal every time you bank, climb or dive the plane. Useless IMHO.
I prefer to design omni antennas with the lowest possible gain, and increase the gain in the receiver end. This way you can fly much more acrobatic without video glitches (except if you point the radiation null directly to the receiver, what is quite difficult to achieve in normal flight).
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We will be closed from November 18th to 29th Website will still take orders but they will be shipped on the 29th. If you need it in time, please check with one of our dealers. Dismiss