Hey, I want to make a long range antenna for my arduino project.
I want to use two arduino boards one for transmitting and the other for receiving. Overall, I need that the maximum range of this setup will be about 4 km and I'm looking for a module that can communicate with the arduino board.
Does anyone know such a module or can advice me how to make such project?
If so, please let me know, thanks in advance.
You have made an assumption we know where this 4km will be and that has a huge affect on the distance achieved.
LoRa modules have been tested to 702km, ground to high altitude balloon, 868mhz @ 25mW. 5dBi antenna one end 2dBi the other.
The same equipment might give a range of 700m (or less) at ground level in a built up area.
So location, antennas and their positioning have a more significant effect than the actual modules used.
And of course you need to say what data rate this project needs, that makes a large differance to range also.
A general description of the project will help everyone to give you better advice.
What exactly do you mean by;
"Hey, I want to make a long range antenna for my arduino project."
Antenna DIY can be tricky unless you have the right experience and test equipment.
srnet:
You have made an assumption we know where this 4km will be and that has a huge affect on the distance achieved.LoRa modules have been tested to 702km, ground to high altitude balloon, 868mhz @ 25mW. 5dBi antenna one end 2dBi the other.
The same equipment might give a range of 700m (or less) at ground level in a built up area.
So location, antennas and their positioning have a more significant effect than the actual modules used.
srnet:
And of course you need to say what data rate this project needs, that makes a large differance to range also.A general description of the project will help everyone to give you better advice.
What exactly do you mean by;
"Hey, I want to make a long range antenna for my arduino project."
Antenna DIY can be tricky unless you have the right experience and test equipment.
I forgot to mention those details.
I want to put the transmitter module on a rc plane and the the receiver module, would be on the remote controller, on the ground while the transmitter module will be high above the surface.
You can assume that there will be no obstacle between the two modules.
Basically, what I'm trying to make is a telemetry module for the rc plane.
The data rate that I need for the communication setup is between 42 - 168 bytes per second, but if this data rate is too high, perhaps I can lower the data rate even further.
Anyway, I hope this information is sufficient, thanks for your comment.
Its surprising how many people 'forget' to include the details of a project.
For an aeroplane in flight most any module will do, Si4432 based ones are cheap, there is also HC12 and of course LoRa modules.
Do rembember that in a lot of places in the World you cannot fly a plane beyond un-aided line of sight, so in practice you only need about 1 - 1.5km of range.
srnet:
Its surprising how many people 'forget' to include the details of a project.For an aeroplane in flight most any module will do, Si4432 based ones are cheap, there is also HC12 and of course LoRa modules.
Do rembember that in a lot of places in the World you cannot fly a plane beyond un-aided line of sight, so in practice you only need about 1 - 1.5km of range.
It's not the case in my country, there is no limitation to the range that you can fly an rc plane from your position, I'll still be needing a transmitting module that'll be capable of transmitting to a range up to 4-5 km.
Do you think LoRa module will be capable of doing that?
and if so, what kind of module do you recommend?
LoRa modules would be the most likely to work, but which one would depend where in the world you are.
It's not the case in my country, there is no limitation to the range that you can fly an rc plane from your position
Given that I can make a very good estimate of your location, I find that assertion astonishing.
AWOL:
Given that I can make a very good estimate of your location, I find that assertion astonishing.
I mean, there is no regulation in my location that prohibits of doing that, that I'm aware of.
srnet:
LoRa modules would be the most likely to work, but which one would depend where in the world you are.
I'm living in Israel for that matter, but why does it matter where am I from?
And which LoRa module would you suggest?
dindibo4:
I mean, there is no regulation in my location that prohibits of doing that, that I'm aware of.
What AWOL was doing was making you aware that there will certainly be aviation authority rulings by which you must abide, not only line of sight but height and location as well as others.
It would be irresponsible NOT to mention the fact and also for you to ignore it.
dindibo4:
I mean, there is no regulation in my location that prohibits of doing that, that I'm aware of.I'm living in Israel for that matter, but why does it matter where am I from?
And which LoRa module would you suggest?
It matters greatly! If you were on the other side of the wall and asking these questions, we might assume you were tired of using kites and wanted to use something more sophisticated.
Paul
dindibo4:
I mean, there is no regulation in my location that prohibits of doing that, that I'm aware of.
That is very different to what you said earlier;
"It's not the case in my country, there is no limitation to the range that you can fly an rc plane from your position"
I suggest you check what the regulations actully are in your part of the World, you do not appear to know or have checked what they are.
I'm living in Israel for that matter, but why does it matter where am I from?
It matters because of the rules that govern the use of licence excempt moudules, the frequency bands allocated vary around the World.
srnet:
That is very different to what you said earlier;"It's not the case in my country, there is no limitation to the range that you can fly an rc plane from your position"
I suggest you check what the regulations actully are in your part of the World, you do not appear to know or have checked what they are.
It matters because of the rules that govern the use of licence excempt moudules, the frequency bands allocated vary around the World.
Well, we indeed have a restricted frequency, it is 5.8 GHz or higher.
there is no other frequency in the UHF band that is not allowed here.
5.8Ghz is SHF band.
Hi,
I'm living in Israel for that matter, but why does it matter where am I from?
What frequency does the RC plane use for remote control, will it give you 4kms range?
I would have thought putting an RC plane in the air in your part of the world was pretty dangerous.
Tom... 
dindibo4:
Well, we indeed have a restricted frequency, it is 5.8 GHz or higher.
there is no other frequency in the UHF band that is not allowed here.
UHF would be taken as between 300Mhz and 3Ghz.
I would be astonished if there are no 'not allowed' frequencies in that range.
There will be a lot of domestic, commercial, rescue service, government agencies, aeronautical and miltary users in this area and to allow others to interfere with no restriction would cause chaos.
TomGeorge:
Hi,What frequency does the RC plane use for remote control, will it give you 4kms range?
I would have thought putting an RC plane in the air in your part of the world was pretty dangerous.
Tom...
Hi Tom, the rc plane remote controller uses frequency of 2.4 GHz,
the range of the remote controller is a bit higher than 4 km.
Beside that, there is nothing dangerous or illegal in flying an rc plane in my country, as long as the frequency isn't 5.8 GHz
srnet:
UHF would be taken as between 300Mhz and 3Ghz.I would be astonished if there are no 'not allowed' frequencies in that range.
There will be a lot of domestic, commercial, rescue service, government agencies, aeronautical and miltary users in this area and to allow others to interfere with no restriction would cause chaos.
There are probably more other not allowed frequencies in the UHF band. I didn't investigated this topic much, but I do know that 2.4 GHz and 433 MHz frequencies are allowed and they are the most commonly used frequencies in the 'RC world' , so I guess that the transmitting module can be in one of those frequencies.
By the way, there is an FPV camera transmitter on the rc plane that works on 2.4 GHz frequency, could the telemetry transmitter transmit in 2.4 GHz as well?
The telemetry module suppose to be next to the camera transmitter.
there is nothing dangerous or illegal in flying an rc plane in my country
No one believes you.
jremington:
No one believes you.
Let's keep politics out of this thread.
I've asked for help in finding a transmitting module that is capable of doing the things I've mentioned.
If someone can advice me on a LoRa transmitting module that doesn't transmit on 5.8 GHz and is capable of transferring data in a rate of about 1 kb/s, please let me know.
politics aside.
There are many telemetry systems available to hobby users, in 433MHz band. FPV radio telemetry modules are common. These use a data rate of 57600 baud. They are designed to be used with Arduino type microprocessors. They do have a quirk on the transmitter end. The TX wire on the transmitter needs to be connected to TX pin used on the arduino. I assume the gnd unit does not need to send data back to the air unit. The data can be received with the gnd USB module and can be viewed by a serial terminal program on a PC.
I write VB6 applications for monitoring many data telemetry systems that I have in my home.