Someone was trying to get good signal
What antennas even are these!?!?

They just look like some linear dipole antennas (aka whip antennas). Nothing particularly special. You would likely get a better signal using omnidirectional antennas.

they look like they where 2,4ghz length not 5,8ghz antennas to me

they should be in a different direction, both 45deg, 90deg between both antennas. diversity doesnt help much thatway.

someone was trying to get a good signal? here is a basic story for signalquality, some fpv history:

Oh woow that is cool and interesting! Thanks!

Usually antenna are very badly identified/marked up, so once you move them away from their supplied purpose or pack label, it can get tricky. There is "sort" of a norm, in that if it has nothing on it, its likely 2.4GHz, and 5.8GHz are often marked as such on the connector area.

The photo ones do look long for 5.8GHz, but you can get various dB strength antenna especially for 2.4GHz and which one you use depends on if you want a wide area of coverage or greater range (but narrower useful width), and they are differing lengths. Usually the type shown, linear dipole antennas (aka whip antennas), also known as "rubber duck" aerials, would as HB says be angled to be 90 degrees apart or so.

What is "someone" trying to achieve, better distance/range, better quality at LOS distance, and will they be flying in front of them only or maybe all round themselves?

Yeah, I just saw this online and it looked funny
was just wondering what it was

This one I spotted back in summer got me interested in helical antennas.  But imagine the looks you get rocking that in your local park. It looks like a death ray mounted to your head.

Holy smokes!!
that is crazy! You sure would get a lot of looks!
How much better of a signal does that even give you?

10-20km worth, I guess.

If you were doing LR, best thing to do is fly from somewhere high up to start with. So top of a hill, maybe top of a building if you have access, if you really want to go out there, maybe a truck with a telescopic lift. Maybe also build a ground station and mount the helical on a tripod and use a longer cable between it and your goggles so you don't end up with neck issues. But if you just want to fly out 2-3 miles, then you don't need that sort of antenna. A good quality omni and a good quality patch should be fine. Start short and work up, but be prepared to have to go dig through a field or forest to find your quad if it goes down.

Not sure you should think about LR until you have your whoop and have flown it for a bit.

Wow, that is actually quite a bit!

a helical is a directional antenna like a patch antenna, you can do more range but the angle shrinks. only in one direction. more turns on a helical gives more range and shrinks the angle of the direction.

best use on a helical with much turns antenna is when it tracks the model.

Huh, cool! Interesting and never knew about that until now!

like a dobermans ears, they are directional :-) they track the signal indipendently, our goggles would need to be like dog ears for best signal xD

Yeah! That is true! I wonder if anything like that is going to ever be invented in the future!

Antenna trackers are already invented.

https://www.immersionrc.com/fpv-products...racker-v2/
^^thats an example of a retail one- there’s lots of diy options as well.


…I was trying to find a picture of those dinner plate size triple feed patch antennas to add to the massive antenna pictures in this thread, but I can’t seem to find them.