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efeksk
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Posts posted by efeksk
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What kind of antenna ?
Made for 2.4 GHz and 5.8 GHz frequencies. There is a reflector at the back of the tee. Could you work that way and build an antenna? For a 5.8GHz remote controller and a 2.4 GHz image receiver
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On 07.07.2017 at 7:45 PM, Admin said:Onmi-directional UWB antennas have been developed in the last decade
What is this
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No this is not good. He's using a brush motor system. Brushless motor system is better
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Hello my friend.
Can we build this antenna with 25 dBi gain -
no. They are the videos of my friends
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1 person likes this -
excellent
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Moreover, the parabolic reflector on this wheel will be useless
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On 21.06.2017 at 8:08 AM, Admin said:Simple 5,6 GHz cross-polarization dipole antenna ,,,
and with parabolic bottom box as reflector,,,
Wooww
It looks good.
But for better work, try to make the angle at the extreme point 25 degrees instead of 45 degrees. And the tips at the top of the arms must be 25 degrees outward. It must also be 25 degrees outward at the ends of the arms facing downward.1 person likes this -
On 20.06.2017 at 7:40 PM, Admin said:Efeksk, dronlar için en iyi motor bu mu?
No, my friend
This is a variable option.
First you need to set the size of the dron and its purpose.
We will then make a list of engine esc and other equipment -
Yes true.
It comes as a full kit. -
my dear friend.
You will need specially engineered engines and speed control units to make any drone capable of flying. You will also need a flight control card and software to control all these systems.Engines must be capable of turning specially crafted propellers at high RPM values. Speed control units will be needed to control each of these engines separately. You will need a flight control system to control the engine and electronic speed controllers. You can not do all this with any engine. These systems are specially manufactured. You must buy the appropriate motor and electronic speed controllers to do it yourself. You will also need a remote control system and a flight controller card. Unfortunately, without them, it is impossible to do a drone that can fly with ordinary objects.
I've been working on this hobby for about 14 years. I did not see a drone that could fly with a cooler fan. Because their engine and propeller structure is not suitable for this job.
Also;
Each drone to be built has its own motor systems. The size of the drone, the weight, and the tasks to be done determine how all combinations will work. Unfortunately, this hobby is a bit expensive. It's a very difficult hobby from a financial point of view.The basic elements you will need are as follows.
1- Main body
2- Motors suitable for main body
3- Electronic speed controller suitable for motors (ESC)
4- Propellers suitable for engines and flight weight
5- Flight Control Card which will control the entire system
6- Video transmitter module for wireless video transmission
7- Lithium polymer battery suitable for the system
8- At least 6 Channel Controlled Radio Control
9- Video image receiver module
10- Suitable screen or video glasses for watching video image
1 person likes this -
This system is better
This system is better
Because there is extra fpv wireless video display system -
The simplest and most basic system for the start can be this way
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This picture is a fake drone. Totally merged to make fun of it. It can never fly like this
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ok. I try it
1 person likes this -
44 minutes ago, Admin said:Ve neden bir metan gazı silindirinin altından 85mm'lik bir parabolik reflektörle denemiyoruz?
Would that be successful?
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Yeah. In my example, the antenna is more successful in terms of parasite and gain
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Pictures of the antennas I built.
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no...
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The parabolic refractor will not work.
Because race drones have a versatile flight character. He is doing acrobatics. In this case, there will be a dead RF field at the bottom of the parabolic reflector antenna. -
Elliptical patches should be easy to build
1 person likes this -
For small drone racers, the antennas are working at 5800 MHz. At these frequencies the distance is shorter but the video image is better. In addition, these freestyle systems are very small and lightweight. There are many 5.8GHz antenna types that have proven to date. However, the most efficient antenna in these antennas is the circular polarization omni antenna. It will be very useful to produce this antenna by calculating it for 5800 MHz frequency.
in Antennas 5GHz band
Posted
wooooow