Very Long Range Antennas

[bumper]

Higher frequencies, such as the 2.4 and 5.8 GHz used for DJI's drone control, don't follow the earth's curvature, as do very low frequencies. The radio signal behaves much like a flashlight in that regard. The chart below shows the altitude differential one would need to consider and overcome due to the Earth's curvature.

Distance	Curvature
1 km	0.00008 km = 0.08 meters
2 km	0.00031 km = 0.31 meters
5 km	0.00196 km = 1.96 meters
10 km	0.00785 km = 7.85 meters
20 km	0.03139 km = 31.39 meters
50 km	0.19620 km = 196.20 meters
100 km	0.78479 km = 784.79 meters
200 km	3.13897 km = 3138.97 meters
500 km	19.6101 km = 19610.09 meters
1000 km	78.3196 km = 78319.62 meters

 

[Otisangb]

Higher frequencies, such as the 2.4 and 5.8 GHz used for DJI's drone control, don't follow the earth's curvature, as do very low frequencies. The radio signal behaves much like a flashlight in that regard. The chart below shows the altitude differential one would need to consider and overcome due to the Earth's curvature.

Distance	Curvature
1 km	0.00008 km = 0.08 meters
2 km	0.00031 km = 0.31 meters
5 km	0.00196 km = 1.96 meters
10 km	0.00785 km = 7.85 meters
20 km	0.03139 km = 31.39 meters
50 km	0.19620 km = 196.20 meters
100 km	0.78479 km = 784.79 meters
200 km	3.13897 km = 3138.97 meters
500 km	19.6101 km = 19610.09 meters
1000 km	78.3196 km = 78319.62 meters

But the OP may be very tall. And he's from Canada. Might be filming polar bears up in the arctic where it's a little flatter.

 

[Thanev]

After seconds of research on the interweb:
Power issue solved:
And as far as signal loss due to the curvature if the earth...look at the facts:

The answers are on the interweb folks.Really.

 

[mdrm_mavpilot]

Reportedly there are latency issues at 11 Miles
is-there-an-antenna-that-is-considered-the-best-or-rather-whitch-ones-are-in-the-top-places

Why do you want to test 100km away?

 

[CamFlyerCH]

I think the much easier approach would be to use the mobile network for that like the Parrot 4G mod: uavpal/disco4g

 

[jtmu6982]

Lots of ego flying around here...not drones...