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Quote: Originally Posted by skubacb |
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Here is a sobering thought.
Nowhere have a read about or heard about, anyone that can cause a repeatable or testable XPS system failure.
I am not saying that there might not be one but going off and calling people liars and talking about law suits without a drop of proof is lame, boring and irresponsible.
Kiwi's "test" only showed that you can saturate the XPS system. It did NOT show that XPS will not hop. Time and time again it has been explained that it takes a specific environment to make XPS hop. A pure saturation of the 2.4 band is apparently it not it. |
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First of all: Thread resurrection.
Second of all: Kiwi's video was about interference, not saturation. There's a fundamental difference between these two.
Third of all: It is a fact that JD's "spherical antenna" has a blind spot, as does any other single ground-plane monopole design. There's nothing to debate about, this is how it is and every single piece of technical teaching and writing on the subject says the same thing. The antenna characteristics are well known and not up for debate, unless JD produces evidence of the contrary. Remember, it's JD who claims to have invented a magical antenna. It's always up to the guy who claims something to prove it.
Fourth: Kiwi's test is repeatable and rather well documented. JD, in his attempt to "debunk" Kiwi's test, fundamentally altered the test setup - he put the RX right up against the interfering transmitter, thus indeed saturating it. Well, except his own receiver, which he helpfully kept at a few more inches distance which, as you learn when you study this stuff, is a significant factor because the power falls by distance squared. And oh, JD did prove one thing: That his system didn't hop away from the interference.
Fifth: You having fown x amounts of hours without problems doesn't "disprove" fundamental design issues, like having the receiver request a channel hop from the transmitter. It's rather logical to conclude that this means trouble if someone just flicks a switch on their interfering 2.4 equipment, and Kiwi's test plausibly confirmed that. Doesn't matter if you fly 10 years without problems, tomorrow someone like me will switch on their 2.4GHz FPV system nearby while you're flying, and you
will lose your aircraft, while the FASST and Spektrum guys stay in the air.
It's not about random and hard-to-grasp problems. It's really rather simple: XPS doesn't hop when there's an interfering signal on your channel that appears instantly, and the single antenna design has a blind spot that can cause loss of control under adverse circumstances. No system is perfect, but XPS is technically inferior.
Fly with it, it's your choice and your responsibility. But don't claim that the problems don't actually exist or that we're making this stuff up. And please, read the thread you're replying in before you write your answer. Thanks.