i need you learn about how to develop a video tx-rx system upto 5km. pls help!

 

can anyone tell me if i can use a transistor to pump-up the wifi range. well 20mbps will be enough bandwidth

 

OK, tell us about it.

 

well the first idea was using a lora module. but i quickly realized that that isnt a liable option because of the low bandwidth
then there is wifi but the range is really low

 

Depending on the jurisdiction you come under and the rf band you propose to use you may need a transmission licence. Have you considered that?

 

2.4gHz is not a good radio frequency for outdoor work.
For years I got my 10m wifi 8km. It did not work in the rain or if the humidity was high. (25 years ago)
Then I switched to 5ghz and the rain problem is good. (10 years ago)
At these high frequencies the antennas must be "line of sight". Antenna must see antenna without buildings, or mountains.
You must use a very high gain directional antenna(s).
It is possible to use a "repeater". 1) connection one is from house to tall building 2) connection two is 4km to next radio.

If you want more information on WiFi antennas and repeaters just ask.
Now I am using two CPE510 to get 1km jump at 100m speed. I think it will work much farther away. "tp-link CEP510"

 

but DJI is doing it. how hard could it be?

 

also i need to mention i'm going to use it in a drone so will it work.
is there any embedded engineer, if there is please give me a reference diagram

 

Why would You want to re-invent the Wheel ?
There are many commercial examples available for FPV Quad-Copters/Planes
that can easily reach ~5Km, and a huge variety of matching Antennas as well.
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for fun

 

also i need to mention i'm going to use it in a drone...

Are you in New Jersey?

 

nope

 

but DJI is doing it. how hard could it be?

Porsche builds some pretty good cars, how difficult could it be to design and build one like it myself?

 

so nobody can answer right?
there must be no embedded people here

 

also i need to mention i'm going to use it in a drone

Would have been nice to know that in post #1.

oh shit!

It is not simple.

so nobody can answer right?

Right.
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Use a Raspberry Pie with WiFi or a ESP32 board. Connect to a very good antenna. I can get these to go 5km. Not on a drone. I have not done any drone work. Have done robots.
Compress the video. Reduce the resolution. Reduce the frame rate. Do anything to reduce the bandwidth. That will help! There are settings in the radios that help with distance. Increase power, reduce speed.

 

I wouldn't recommend the usual Micro-Processors for long distances, even if they may work well.

TBS (Team-Black-Sheep ) has excellent bulletproof products with all the bugs worked-out,
and a ton of very useful features/options.
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i need you learn about how to develop a video tx-rx system upto 5km. pls help!

Welcome to AAC.

What you are trying to do will be complicated, expensive, or illegal—or any combination of the three. And in almost every case, all three.

Establishing a stable, digital link requires a great deal of complicated circuitry. Adding a transistor to an existing device is a non-starter, and would be an illegal modification in any case. The complexity of the problem is easily seen by looking at commercial options.

A typical long range link for drone operation is very expensive, and there is a reason. Unless you consider your drone disposable, you need a failsafe arrangement. It is also a health and safety issue, drones falling from the sky tend to give people on the ground bad days. You only mention video, but unless your drone is autonomous, you will need a control link as well.

No mater which jurisdiction you are in, It is almost certainly not legal to fly a drone out of your line of sight without special licensing, if at all. So this is also a complication. Then there are the rules and regulations for radio devices, which also almost certainly prohibit you from building and using your own system.

For example, the TRC require licensing for both manufacture and deployment of any device.

In the final analysis, though the technical challenges are great, the regulatory hurdles are impossible. This is an impractical project—do something else for fun.

 

so i should just move on rather than doing this. thanks anyway for the support. im a teenager and this is my first ever thread.
again thank you all!!

 

Just one more point about why we were unwilling to help.

Yes, an amp on the output if a WIFI board could be made to work, but it would have likely interfered with others using WIFI. This is why governments regulate the power output and require certification for transmitters. If everyone could do whatever they want, it would ruin RF communication for everyone.

 

Just one more point about why we were unwilling to help.

Yes, an amp on the output if a WIFI board could be made to work, but it would have likely interfered with others using WIFI. This is why governments regulate the power output and require certification for transmitters. If everyone could do whatever they want, it would ruin RF communication for everyone.

thanks!