Alfa antenna alternatives?

Samuelg · Apr 2, 2022

Where I live its pretty hard to find the alfa antennas and I would like to improve my range, so i searched at AliExpress and i found these antennas, but I don't really know what am i looking at, how should I search them or what characteristics are nescesary for an antenna to work with the solo controller

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Bruce the orphan · Nov 30, 2022

1) choose the same connector as your transmitter's. sma or rp-sma.
2)choose right frequency. remote control signal is 2.4 GHz and video down-link is 5.8GHz.
3)choose the gain pattern you prefer. normal dipole antenna give you donut-shaped gain pattern. higher gain means the donut is more squeezed. if you want very long distance, directional antenna like patch or yagi also an valid option.

sorin · Dec 3, 2022

@Bruce the orphan : A correction to 2nd point : the data signal is only on 2.4GHz, the video link is also part of the 2.4GHz. There is no 5.8GHz link on 3DR Solo.

@Samuelg : If you want something as close as Alfa antenna then you need to look for a 'Patch Antenna' type. (That's the type of Alfa antenna)
I don't recommend the Aliexpress since most of the antennas will be just some dipoles with fancy cover. There is no real engineering in them, just some basic antennas.
Another type of antenna (after Patch one) I can recommend is the 'Collinear antenna'. That antenna is like a normal stick antenna, but longer.

Mike Boland · Dec 3, 2022

These are what I use with excellent results

Long Range Antenna Set (3DR SOLO) V2

Product Description This is the new higher gain version of the popular FPVLR kit for 3DR Solo. Beamwidth is 60 degrees measured at -3dB… gain is a healthy and real 10.5dBi and 3 miles has been recorded in absolutely pefect conditions with no amps. Typical di

www.onedrone.com