Hello
My spark often disconects from the controler and returns home. should i use a cable conection betwin the rc and my phone or this doesnt solve the problem?

I believe DJI says OTG cable is not supported.

Maybe a little more information, what kind of distance before you lose connection , what kind of area are you flying in.?

hallmark007 Posted at 2017-10-8 11:29
Maybe a little more information, what kind of distance before you lose connection , what kind of area are you flying in.?

about 200m long 100hight,open aeria no obstucles

diem Posted at 2017-10-8 11:36
about 200m long 100hight,open aeria no obstucles

Have you tried both 2.4ghz and 5.8ghz and is distance the same.?

hallmark007 Posted at 2017-10-8 11:39
Have you tried both 2.4ghz and 5.8ghz and is distance the same.?

i havent tried the 2.4ghz yet. is it a matter of ghz or rc connectivity (wifi-cable)?

diem Posted at 2017-10-8 11:45
i havent tried the 2.4ghz yet. is it a matter of ghz or rc connectivity (wifi-cable)?

Well as someone who lives in EU I have found with 2.4ghz I can get 600 metres without to much difficulty. I can only get 250 metres with 5.8 ghz. I have tried OTG and can’t get anymore using it. So try 2.4ghz see if this makes any difference. You are supposed to be limited to 500metres  with CE in Europe.

hallmark007 Posted at 2017-10-8 11:50
Well as someone who lives in EU I have found with 2.4ghz I can get 600 metres without to much difficulty. I can only get 250 metres with 5.8 ghz. I have tried OTG and can’t get anymore using it. So try 2.4ghz see if this makes any difference. You are supposed to be limited to 500metres  with CE in Europe.

i will. much appreciate your help!

diem Posted at 2017-10-8 11:57
i will. much appreciate your help!

No problem, hope it works out for you.

Thanks for the replies above, it is always a good way to ask for help in the forum coz there are a lot of professional pilots here.
If the drone disconnected a lot, please help to confirm if all the drone and RC's firmware are up to date. Make sure that there is no other WiFi interference around, Bluetooth also affects it, please shut it down during the flight.  Distance should be greater than height during flight, and please make sure the remote controller’s antennas are positioned parallel to and are pointed towards the aircraft. Still, use a mobile device with a strong performance.

2.4 is better in terms of wave propagation than 5.8, so more received power reaches farther.
This may be mitigated, however, by the fact that in countries where the 5.8 spectrum is open to the public - it's generally much less used than the 2.4 one. Also, the available bandwidth in 5.8 is wider (2.4 has 50MHz bandwidth; in 5.8, DJI uses 80MHz bandwidth).
The combination of these two things - more users on narrower bandwidth - means 2.4 has more potential to suffer from interference.
So to sum it up: if you're out in the field where other wireless users are scarce, 2.4 should perform better and help you fly farther. In a more crowded environment where there are many wireless users, it is not so unequivocal.

All of this is, of course, assuming the transmitted power from the source is the same in both frequencies; In some countries, the allowed transmit power on 5.8 may be higher - and if the margin is big enough, it could reverse the outcome.

Specifically regarding you - you live in Greece, which I assume follows the Euro regulation (CE). Therefore, assuming the same level of external interference from other users, 2.4 should perform better.

djiuser_Kf4iPA3 Posted at 2017-10-11 00:38
2.4 is better in terms of wave propagation than 5.8, so more received power reaches farther.
This may be mitigated, however, by the fact that in countries where the 5.8 spectrum is open to the public - it's generally much less used than the 2.4 one. Also, the available bandwidth in 5.8 is wider (2.4 has 50MHz bandwidth; in 5.8, DJI uses 80MHz bandwidth).
The combination of these two things - more users on narrower bandwidth - means 2.4 has more potential to suffer from interference.

yes i live in Greece (CE is being followed) and were i fly there are no other drones flying. I will try the 2.4 though to see if it makes any difference

DJI Thor Posted at 2017-10-11 00:17
Thanks for the replies above, it is always a good way to ask for help in the forum coz there are a lot of professional pilots here.
If the drone disconnected a lot, please help to confirm if all the drone and RC's firmware are up to date. Make sure that there is no other WiFi interference around, Bluetooth also affects it, please shut it down during the flight.  Distance should be greater than height during flight, and please make sure the remote controller’s antennas are positioned parallel to and are pointed towards the aircraft. Still, use a mobile device with a strong performance.

i have concidered all the above mentioned. No bluetooth and wifi interferes, no other users too. i am using an iphone 6s which i consider is a decent device.

diem Posted at 2017-10-12 11:35
i have concidered all the above mentioned. No bluetooth and wifi interferes, no other users too. i am using an iphone 6s which i consider is a decent device.

If the conditions are all good, but the controlling distance is very short, I will recommend exporting your flight records and contact a tech support to start a data analysis, we can help to check if it is a hardware issue. You can contact us on this page: http://www.dji.com/support.

DJI Thor Posted at 2017-10-13 03:50
If the conditions are all good, but the controlling distance is very short, I will recommend exporting your flight records and contact a tech support to start a data analysis, we can help to check if it is a hardware issue. You can contact us on this page: http://www.dji.com/support. https://www.youtube.com/watch?v= ... 2Cp8GaKa_i&index=12

how do i upload to the server? is there a link?

diem Posted at 2017-10-14 06:37
how do i upload to the server? is there a link?

Diem, did you contact our support? Please provide me the case number or ticket number.
You can upload your data to dropbox and post the link. We can help you forward the data. Or you can provide it to them. Thanks for support.

DJI Elektra Posted at 2017-10-15 02:47
Diem, did you contact our support? Please provide me the case number or ticket number.
You can upload your data to dropbox and post the link. We can help you forward the data. Or you can provide it to them. Thanks for support.

dji

diem Posted at 2017-10-15 06:55
dji

Thank you so much, please also help to name the version number on the About of General Settings, this info is needed. Thank you so much of your feedback.

DJI Thor Posted at 2017-10-16 01:07
Thank you so much, please also help to name the version number on the About of General Settings, this info is needed. Thank you so much of your feedback.

app version 4.1.12
basic app fly safe database version 01.00.01.05
precise app fly safe database version 01.00.01.05

diem Posted at 2017-10-16 13:28
app version 4.1.12
basic app fly safe database version 01.00.01.05
precise app fly safe database version 01.00.01.05

Thank you, I'll forward to the engineers to look into. Will come back once I heard something.

Following for the outcome.

diem Posted at 2017-10-16 13:28
app version 4.1.12
basic app fly safe database version 01.00.01.05
precise app fly safe database version 01.00.01.05

Updated. Here's the news from our engineers. We had read your data, since you are located in CE area, and you are flying the drone in 5.8GHz, it means the max transmission distance will be 300 meters when you fly it in unobstructed, free of interference place. So it is a good condition when you flew it for about 200 meters. You can try to switch the operating frequency to 2.4GHz which will be able to fly further, and please also pay attention to the WiFi settings, avoid flying the drone in a strong interference area. Thank you.

DJI Thor Posted at 2017-10-16 22:11
Thank you, I'll forward to the engineers to look into. Will come back once I heard something.

thank you!!

DJI Thor Posted at 2017-10-17 01:45
Updated. Here's the news from our engineers. We had read your data, since you are located in CE area, and you are flying the drone in 5.8GHz, it means the max transmission distance will be 300 meters when you fly it in unobstructed, free of interference place. So it is a good condition when you flew it for about 200 meters. You can try to switch the operating frequency to 2.4GHz which will be able to fly further, and please also pay attention to the WiFi settings, avoid flying the drone in a strong interference area. Thank you.

thank you for the reply. i will try to fly at 2.4GHz

The question is - how to easily switch to 2.4? I tried it several times today. After changing it in DJI App4 it lost connection to RC entirely. I had to reset RC to connect to DJI App 4 again. My phone can't find RC frequency of 2.4.
I've Samsung A5 2016 and Nougat 7.0

fans7b6311e4 Posted at 2017-10-17 12:33
The question is - how to easily switch to 2.4? I tried it several times today. After changing it in DJI App4 it lost connection to RC entirely. I had to reset RC to connect to DJI App 4 again. My phone can't find RC frequency of 2.4.
I've Samsung A5 2016 and Nougat 7.0

mine also prefers 5.8.. i use iphone. doesnt switch to 2.4

fans7b6311e4 Posted at 2017-10-17 12:33
The question is - how to easily switch to 2.4? I tried it several times today. After changing it in DJI App4 it lost connection to RC entirely. I had to reset RC to connect to DJI App 4 again. My phone can't find RC frequency of 2.4.
I've Samsung A5 2016 and Nougat 7.0

Some of the Android device doesn't support 5.8GHz frequency. In this circumstance, if you change the WiFi on the app to 2.4GHz, it means you change the transmission frequency to 2.4GHz, then the WiFi that the RC launch will be forced to 5.8GHz, so if the mobile device doesn't support 5.8, it can not find the RC's WiFi. So this relates to the mobile device. If your mobile device support 5.8GHz, please wait for a while after switching the frequency until the RC blinks green.

diem Posted at 2017-10-17 13:12
mine also prefers 5.8.. i use iphone. doesnt switch to 2.4

The drone will automatically select the best channel when it is initiated. You can try switching to 2.4GHz manually.

hallmark007 Posted at 2017-10-8 11:50
Well as someone who lives in EU I have found with 2.4ghz I can get 600 metres without to much difficulty. I can only get 250 metres with 5.8 ghz. I have tried OTG and can’t get anymore using it. So try 2.4ghz see if this makes any difference. You are supposed to be limited to 500metres  with CE in Europe.

I have reached about 700m in 5.8 here in Spain, flying in an unobstructed area very wide and no interference of any kind, have not tried to fly in 2.4 in the same spot yet, but someone told me here in the forum that they where able to reach further distances than 1km in CE...so i might try it next time i go to the same spot. Also the OTG cable is not supported as mentioned before in the thread, i bought one with my fly more combo cause i thought it worked, and then found out it was useless...maybe in the future it will work.

DJI Thor Posted at 2017-10-17 01:45
Updated. Here's the news from our engineers. We had read your data, since you are located in CE area, and you are flying the drone in 5.8GHz, it means the max transmission distance will be 300 meters when you fly it in unobstructed, free of interference place. So it is a good condition when you flew it for about 200 meters. You can try to switch the operating frequency to 2.4GHz which will be able to fly further, and please also pay attention to the WiFi settings, avoid flying the drone in a strong interference area. Thank you.

update
tried to change to 2.4GHz.changed at the controler but when i started flying the frequency automaticaly changed to 5.8 and wouldnt change to 2.4.. as a result it disconected at 300 meters. if i have to fly it over my head then this is not fun.. am i doing something wrong?

diem Posted at 2017-10-19 00:15
update
tried to change to 2.4GHz.changed at the controler but when i started flying the frequency automaticaly changed to 5.8 and wouldnt change to 2.4.. as a result it disconected at 300 meters. if i have to fly it over my head then this is not fun.. am i doing something wrong?

May I know what mobile device are you using? Then please also help to name the drone's firmware version. Besides, could you reproduce the situation when you are not flying, I mean the frequency will automatically switch back to 2.4GHz, if yes, it would be great if you could provide me with a video which contains this case. Thank you so much.

DJI Thor Posted at 2017-10-19 00:44
May I know what mobile device are you using? Then please also help to name the drone's firmware version. Besides, could you reproduce the situation when you are not flying, I mean the frequency will automatically switch back to 2.4GHz, if yes, it would be great if you could provide me with a video which contains this case. Thank you so much.

i am using iphone6s latest ios. as you may see at the video (link) as it is connected to the RC it is 2.4 and when i turn on the drone and it connects it automaticaly turns to 5.8 and it doesnt change afterwards. Aircraft version 01.00.0600
connecting video

connect AC and RC first, then switch to 2.4GHz in DJI GO. after switching, don't forget to scroll down and select a channel! Use the one with the shortest green bar. If you don't choose a channel, nothing will happen! The AC will then restart, your screen will turn black and  after rebootig, you're connected at 2.4GHz.

Hope that helps,
Flip.

Flip_L Posted at 2017-10-19 05:13
connect AC and RC first, then switch to 2.4GHz in DJI GO. after switching, don't forget to scroll down and select a channel! Use the one with the shortest green bar. If you don't choose a channel, nothing will happen! The AC will then restart, your screen will turn black and  after rebootig, you're connected at 2.4GHz.

Hope that helps,

it worked! thank you!!

no worries man ;)