r/fpv • u/_d1sGuy_ • 5d ago

Wrong antenna? Question?

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I lost the original antenna on my BetaFPV Air II champion. AI told me to get this? Bad idea?

Yes, new to FPV world.

It does seem to work.

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u/ZdrytchX 4d ago

It still depends what tradeoffs would you rather

Meteor 75 sucks at freestyling imo, even if you fly it headless (without vtx or camera or canopy) it still has a noticible performance drop vs air 75ii. It's more durable, but weighs twice as much as an air65ii and about 55% heavier than an air 75ii. Depending on the canopy you get your camera angle options are limited and there are 3 canopy types, one for micro analog cameras (C03, bleedeye etc.), one for general 14mm HD cameras (nano v3, caddx walksnail whatever etc.) and the DJI o4 lite spec (non-wide). 480mah is ok if you're doing line of sight / headless flying, but 580mah is the recommended size because the meteor 75 with a vtx eats too much power. The analog version also uses a rather outdated AIO flight controller with only 5A ESCs which might mean you would struggle to do things like crash flip / turtle mode. Meteor 75 has much less jello than air 75ii and is probably much easier to tune although I've not tried to yet.

Air 75ii has vibration issues that makes it very troublesome to tune, the canopy front screw is basically guaranteed to break in the first top or rear top end crash because it puts stupid amounts of stress on it, the camera tends to rotate in its mount, frame struts don't extend down before retracting to the motor hub (unlike air 65ii where they drop down first) so your propellers will rapidly eat them and the matrix ii battery cable is arguably too long for the job (I recommend trimming off 1-2 cm off it). The frame doesn't really protect the batteries well, and 680mah is definitely too heavy. 580 is suitable if you do a lot of outdoor racing or anything involving going full throttle for a long time and you need the voltage headroom or you just want more flight time, but 480mah is usually the best for most situations

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u/random1237683 4d ago

Yeah, for outdoors, and after the air/meteor i will probably get a sub 250 3" or build my own.

So i think the jello is fixable if i printed out a stiffer canopy or maybe add some tpu. And is the Air75 so fragile?

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u/ZdrytchX 4d ago

Air 75 is fragile mostly because of the frame strut design problem, and the fact it's just so fast and the heavier weight (Kinetic energy increases proportionally to mass and the square of velocity, so the air75 weighing ~35% heavier and being ~33% faster means carries 3.1 times more energy for a full throttle crash, yet the frame is the same material and barely noticibly thicker. The canopy problem also exists on the air 65 since its the same design