Hello, i am making a drone ,and i want to design my own pcb. So, i am looking for a >4Mbps >2km long range 2.4ghz module or ic for video transmitting. Thank you.
Lin Che
What is your plan for the antennas that are needed for that range?
For long range, highly directional antennas and clear line of sight is required at all times. That means no trees, bushes, buildings, people or hills between TX and RX.
Flying a drone in a distance of 2 km with a self-developed pcb is a really dangerous thing.
my guessing is:
until you are at the stage of a reliable flying drone you will have spent 5 times more money than buying a professional long distance drone will cost.
Because until you have reached the stage of high reliability you will have had 50 crashes or more because of software bugs, disrupted radio-connection etc.
A modern drone controller costs about 70.00US. By the time all the components are bought to build your own the battery power required to lift off the shelf parts will limit flying time. I worked on building my own drone controller for about 1.5 years before just buying one in the first place. Most drone controllers are open source and are much lighter in weight that what most of us can manually build.
Consider something like a SpeedyBee F7 V2 Flight Controller - Speedy Bee.
On the drone the I use a TBS Crossfire receiver and on the remote control I use a TBS Nano.
And crashes, expect them. Don't buy that fancy camera till you get used to flying the drone and buy several cheap cameras. Oh, do buy a good video transmitter. Typically, a drone likes to go camera first into the ground or bushes or road.
Murphy's law is valid for any object! A slice of bread with peanut butter as well as a drone with camera...
it is a completely different thing if you stay on ground.
If you have a rc-car and the software has a bug the car will bump into some obstacle maybe flip on his back but nothing damaged if you use a robust frame with extra protectors and lower speeds.
For climbing up the learning curve and collect experience IMHO this would be a good opportunity.
Most countries have very restrictive rules for flying vehicles. Drones became very popular and there are enough really dumb people who where flying over crowded places, very near to airports greatly overestimating their capabilities to fly causing crashes and dangerous situations.
It will be still much fun to drive a rc-car first-person view . If the camera is good protected you will even enjoy bumps and flip over. If you design the frame to roll back landing on the wheels.
For a car a 200 m range 5,8 GHz FPV-set camera and goggles for $50 will do
best regards Stefan
thank you everyone , i am a student and i wannt to learn more about drone .I planned to buy a dji 1600$ drone, but i think i should desinged my own drone with raspberry pi.Not only i can fet some experience but also spend less.I found this 12km 600mw module.(ImmersionRC 5.8GHz 600mW Tx range test 12 km - YouTube) Thank you
$1600 for a drone. When I was a student that was a complete semister's tution and books and some left over for living expenses like beer.
Anyone can build a drone, like the Internet is full of various instructions. Buy a $200 drone and put $1400 toward ligimate needs.
PS: investigate LoRa packet radio.
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Hi, @lukelin
Google is your friend;
Google;
arduino drone
There is a plethora of ideas and projects for you to look through.
Tom.. 
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