Patch antenna with regular antenna

[worthy juniper]

I have vr03 Betafpv goggles, can I run a patch antenna on my goggles and a lumenier axis II
on my receiver and be fine? Also, both would be LHCP.

[wraith bluff]

LHCP is a bit of a weird choice for analog, as most analog pre-builts come with RHCP antennas

but no, it won't cause an issue. A directional antenna on the receiving end will work just fine with an omni on the transmitting end, if they match in polarizartion

[worthy juniper]

Thank for info

Adorable brands?

Sorry I’m new here, I don’t know how to tag and reply lol

[wraith bluff]

adorable?

[worthy juniper]

Jesus fuck 🤦🏻‍♂️ affordable, damn auto correct

[wide acorn]

Prodrone.pl if you don't mind waiting. Best bang for the buck.

Which country are you in?

[worthy juniper]

Virginia USA

[wide acorn]

TrueRC stuff from a US retailer will get to you the fastest. Hugo's stuff is amazing but he charges a fair price for it.

Prodrone.pl is really good stuff and unreasonably cheap.

But they're Polish, so expect a month of waiting.

[wide acorn]

Also, how far are you intending to fly?

[worthy juniper]

I wanna sit in the house and fly around outside, around trees and other houses

[wide acorn]

Well... A patch ain't gonna do too much for you tbh

But you don't need a super high gain patch for that

[worthy juniper]

I don’t need a patch just a 90 degree rp-sma connecter

[wide acorn]

If I'm gonna be honest, the BetaFPV VRXX goggles don't have very good receivers. Polishing a turd, so to speak.

[worthy juniper]

That’s all I can work with right now

[wide acorn]

I can understand budget - okay. You can get basic SMA adapters off Amazon

Make sure the RP is on the right side

[worthy juniper]

I meant a 90 degree rp-sma antenna not connecter. And I have a Cetus X with a lumenier axis 2 short with ufl

I’m sorry the rx antenna is gonna be RHCP as informed above

[wide acorn]

You're not gonna find antennas with native RP-SMA on a 90° connector.

You need to buy an SMA antenna, then get an adapter that's 90°, and RP-SMA on the goggle side but SMA on the antenna side.

[worthy juniper]

What is the best antenna for though walls and metal?

[wide acorn]

not shooting your signal through walls and metal

You'd be better served by getting a long piece of SMA extension and putting it out the window at least

[worthy juniper]

I currently can’t walk and need to sit in the house

[wide acorn]

A good antenna really doesn't do much through occlusion, especially for metal.

[wide acorn]

Got ya - if you can sit nearby a window that'd help a lot.

[worthy juniper]

I can sit at the back door with the door open.

[wide acorn]

That'd make a huge difference

[worthy juniper]

I got trees and I wanna fly over the roof of my house

[wide acorn]

So as context, we generally classify a few meters of light tree cover around -20dB. A highly directional antenna will give you +10dB in the direction you point it, it's a losing battle.

If you're able to follow the aircraft with your head spot-on, a patch antenna could improve your signal a bit but trees and walls are always gonna kinda suck.

[worthy juniper]

I don’t have to fly over or through trees if I don’t want to.

[wide acorn]

Also, how much TX power is your VTX outputting?

[worthy juniper]

400mw

[wide acorn]

Workable - what TX antenna?

[worthy juniper]

Lumenier micro AXII RHCP

[wide acorn]

Should be pretty good quality already tbh

[worthy juniper]

Should I get a RHCP or Omni rx antenna?

[wraith bluff]

That question makes no sense, those are completely separate things

RHCP is the polarization of the signal

Omni is the signal reception/transmission patrern

That 2d diagram is a profile for a 3d representation just by revolving it around the antenna

You need to match the polarity on both the receiving end and the transmitting end - your vtx and goggles both need to have either RHCP, LHCP, or linear antennas

The directionality and reception pattern depends on your needs