[Paparazzi-devel] Reply to: "need help with long range telemetry (Benard Okumu)"

[Chris]

You are diving in to deep waters.
Experiment first with standard equipment (1w at 1,2 or 2.4 ghz video tx 
+ 19db yagi)
in order to achieve at least 30km range and then you will understand 
that you need an airborne antenna tracking system that makes the 
airborne 10db+  yagi look always to the home position, an antenna 
tracking system at the ground station that always track the aircraft and 
a high power 5w+ video tx which will cause a lot of interference 
problems forcing you to use 4m+ span aircraft for this.
The other way is the cellular or satellite video transmission method 
which need a lot of $$
Chris