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GP - Patch Antenna

colorex

Rotor Riot!
Mentor
#3
Thanks for posting that, Colorex! That will probably be useful!
You're welcome!

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Does anyone know what Tx antenna this could be used with?

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I wonder if there could be an antenna comparison episode, like the FPV system episode, but for helical, cloverleaf, and patch antenna. Gonna suggest that now.
 

DREDNOX

Where's the Jager??
#7
I built it. Scaled it up to 910Mhz. Real easy and very cheap!
I outperformed my stock video antenna. Had it out over a mile without a glitch
 
#8
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colorex

Rotor Riot!
Mentor
#9
I built it. Scaled it up to 910Mhz. Real easy and very cheap!
I outperformed my stock video antenna. Had it out over a mile without a glitch
Was that 200mW? What Tx antenna did you use?
I might get the 200mW on 900MHz for FPV and wanted to know which antenna is best.
 

DREDNOX

Where's the Jager??
#11
Yes 200mW 900mhz HK video TX. I use the stock TX antenna on the plane and the patch on the receiver. I'll post some pics
 

DREDNOX

Where's the Jager??
#14
And how well does it compare to helical antennas?
I have never tried one. I've heard that if you use the helical on the ground and a cloverleaf in the air you get better performance as far as maintaining signal while banking hard, nosedives, etc. Range is reported as 'moderate'. I have no idea what distance moderate will cover!
Video Aerial Systems
 
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colorex

Rotor Riot!
Mentor
#15
Thanks! Those pics really help!

I have never tried one. I've heard that if you use the helical on the ground and a cloverleaf in the air you get better performance as far as maintaining signal while banking hard, nosedives, etc. Range is reported as 'moderate'. I have no idea what distance moderate will cover!
Video Aerial Systems
So how well does your system perform in hard banks and dives?
 

DREDNOX

Where's the Jager??
#16
Thanks! Those pics really help!



So how well does your system perform in hard banks and dives?
Depends how close I am. If I'm within 400-500yards I have no problems. It will get a little fuzzy if I'm way out and do a hard turn or dive. I try to remember to turn right when I'm far away because that's the wing the tx is on. I have a couple videos posted in the fpv section here Sometimes when the esc and motor get between the tx and rx I start to get static. I'm also going to upgrade the saw filter in the rx.
Here's part of a vid where I went a mile with the same setup but on an Easystar.
 

DREDNOX

Where's the Jager??
#17
At 3:35 in that video is where I hit the right edge of the patch beamwidth. @ 3:39 you can see me standing outside the screened patio of the house. that glint at me feet is the patch, pointed out towards where I was flying. It wasnt affected by those bushes or the trees in the parking lot. I had it angled up about 35 degrees.