Guess which one weighs less!
It saves about half a gram, range appears to still be good.
For wire length in mm:
149987mm * (magic radio velocity in your specific wire number, 0.96 to 0.98 generally) / frequency in MHz.
In my case I’m using R band #2, 5695mhz, so:
149987 * 0.97 (I’ve no idea, so I split the difference) = 145487.39 (be pedantic when sizing antennae), / 5695 gives us a wire length of 25.546mm. That’s lovely for a half wave dipole, do note that this is the total wire length (or length for a monopole). We’re making a dipole do hack that in half, for 12.7ish mm.
Cut two of those, one goes on ground, one goes on signal. Presto!
You want them aimed as exactly away from each other as possible, and soldered to points as close to each other as possible.
I’ve read that some VTX units use their cloverleaf as a heatsink and fry without it, so be aware of that.
A classic sleeve dipole (or whatever they’re called) doesn’t make as good a heatsink, but it’s probably still better than one of these, so check your VTX temp from time to time. Odds are if you’re racing around with it it’ll be fine, plus a whoop doesn’t exactly spend a lot of time powered on all at once anyway.
If you do cook one, let us know!
Bonus: You won’t rip the antenna off as often if you flip it over like I did in the picture above.