On a recent flight over suburban areas, the drone was about 2 kilometres away, 20-30 metres up, and the ground was flat No police stations or government buildings in the area. I was moving at about 50kph

The drone stopped moving, and I got a message my signal was being jammed and I should ascent immediately. CORRECTION - the message was "Blocked" not "Jammed"
However, the sticks wouldn't respond. After overcoming the "OH NO!!!" feeling, I checked the screen and saw there was still plenty of charge in the battery, and I still had GPS.
I was thinking that when the battery level dropped, it would RTH, but I wasn't certain.
So, I repeatedly moved the sticks and pressed RTH. After a few seconds (seemed like a minute), the RTH prompt popped up, I pressed it, and RTH kicked in.

Do you think RTH would have kicked in automatically if I had waited a while (as I had GPS), or would it have landed?



Update: Looks like my bad. In my panic I misremembered the message. I have found the flight log and it was the signal is "blocked" not "Jammed"

What was the actual error message?

Dirty Bird Posted at 1-2 18:52
What was the specific error message?  Did it actually say you were being jammed or just that there was interference between the RC & drone?  The latter is normal if you go beyond range, behind an obstacle, etc..  I have never seen a message stating, "Your drone is being jammed."

i know you didn't ask but here's my advice:  simply don't fly there again and forget about it (politely).

The Saint Posted at 1-2 19:03
i know you didn't ask but here's my advice:  simply don't fly there again and forget about it (politely).

Thank you; I respect your advice.

TonyPHX Posted at 1-2 18:22
What was the actual error message?

Yes, it said my signal was being jammed and I should ascend immediately

TonyPHX Posted at 1-2 18:55
[view_image]

Yes, it said my signal was being jammed and I should ascend immediately

Dirty Bird Posted at 1-2 19:13
LOL wait until they hit it with the PB&J.  That stuff makes a real mess of things!

I flew through a swam of bees once (what were they doing 30 metres up??). That took a bit of cleaning

A lucky escape   Do you know now what the building is used for?  Certainly an area to stay away from in future.

Blériot53 Posted at 1-3 01:03
A lucky escape   Do you know now what the building is used for?  Certainly an area to stay away from in future.

It's just a domestic property. I have no reason to fly that way again.

ReproRetro Posted at 1-3 01:30
It's just a domestic property. I have no reason to fly that way again.

If you have RTH set to activate on Signal Loss, I'm pretty sure it would have come back to you after the usual delay ( I think it's 30 sec? )

ReproRetro Posted at 1-2 20:25
Yes, it said my signal was being jammed and I should ascend immediately

Hi,

Do you mind to upload your flightlog for this jammed flight?
use this link > https://www.phantomhelp.com/LogViewer/Upload/
Post the uploaded link on here

Did you pressed the pause/rth button on the RC or used the softbutton RTH in the flyapp ?

see if that jamming messages is in the log!

Did you screen record this flight ?

cheers
JJB

ReproRetro Posted at 1-3 01:30
It's just a domestic property. I have no reason to fly that way again.

If the drone was actually being jammed, there's no reason to believe that the cause was directly below the drone at the time.

I've heard quite a few people guess that their drone was being jammed, usually there was another explanation.
And never heard of that message.
It would be helpful to see the recorded flight data to see what it shows.
It might help understand whether jamming was or was not involved.

Do you think RTH would have kicked in automatically if I had waited a while (as I had GPS), or would it have landed?
All you need do to trigger RTH is to switch off the controller.

I can't see how the drone would know it's being jammed. Jamming is simply filling the airwaves with signals which overwhelm the C2 link. You should have just been told that you had degraded signal.

Unless Aeroscope has a means of displaying messages on screen, I can't say I've ever seen this message and I fly within 150m of some very high security areas. (US Embassy, Buckingham Palace, Downing Street...)

JJB* Posted at 1-3 01:35
Hi,

Do you mind to upload your flightlog for this jammed flight?

I would be happy to upload, but I can't find anything on the RC Pro. In fact, it doesn't record videos or photo either.
When I go through the procedure and tap "Audio Files", this is what I get, and hitting the three dots doesn't give me an option to "Show internal storage"

Labroides Posted at 1-3 02:20
If the drone was actually being jammed, there's no reason to believe that the cause was directly below the drone at the time.

I've heard quite a few people guess that their drone was being jammed, usually there was another explanation.

The reason I believed it was directly below was that it appears jamming devices available to the public are short-range (typically 30 meters) and I was flying 25 or so meters up, so it seemed a reasonable assumption.
I've gone though the RC Rro (using the instructions from Phantom help), but there is nothing.

"All you need do to trigger RTH is to switch off the controller"
Thank you for that

CloudVisual Posted at 1-3 03:52
I can't see how the drone would know it's being jammed. Jamming is simply filling the airwaves with signals which overwhelm the C2 link. You should have just been told that you had degraded signal.

Unless Aeroscope has a means of displaying messages on screen, I can't say I've ever seen this message and I fly within 150m of some very high security areas. (US Embassy, Buckingham Palace, Downing Street...)

It was in red text on a black background. looked scary.
The Rc Pro was using my phone as a hotspot at the time, I don't know if that made a difference

Blériot53 Posted at 1-3 01:33
If you have RTH set to activate on Signal Loss, I'm pretty sure it would have come back to you after the usual delay ( I think it's 30 sec? )

Yes, that's what I thought. It's possible to jam GPS as well, in which case it would't return, but I have no GPS problems

JJB* Posted at 1-3 01:35
Hi,

Do you mind to upload your flightlog for this jammed flight?

I missed part of your question. I used the soft button the the screen

ReproRetro Posted at 1-3 04:43
It was in red text on a black background. looked scary.
The Rc Pro was using my phone as a hotspot at the time, I don't know if that made a difference

Can you please fulfil JJB's request to upload the flight logs so we can see the error. Whilst I don't disbelieve you, the warning will be displayed on the logs. If this warning does exist, then it's news to a lot of us and for my company, we'd need to look to risk assess this and set up an emergency process for dealing with this warning.

ReproRetro Posted at 1-3 04:38
I would be happy to upload, but I can't find anything on the RC Pro. In fact, it doesn't record videos or photo either.
When I go through the procedure and tap "Audio Files", this is what I get, and hitting the three dots doesn't give me an option to "Show internal storage"

oke,  i normally connect the RC to my PC (USB-C cable)  ; RC internal and RC SD card are on the file explorer.

so easy to browse throught the folders.

JJB* Posted at 1-3 05:24
oke,  i normally connect the RC to my PC (USB-C cable)  ; RC internal and RC SD card are on the file explorer.

so easy to browse throught the folders.

This is the external card (in a card reader).
Trying for internal memory now

CloudVisual Posted at 1-3 04:49
Can you please fulfil JJB's request to upload the flight logs so we can see the error. Whilst I don't disbelieve you, the warning will be displayed on the logs. If this warning does exist, then it's news to a lot of us and for my company, we'd need to look to risk assess this and set up an emergency process for dealing with this warning.

I would be happy to, it's not on the RC Pro card, so I'm trying with internal memory now

ReproRetro Posted at 1-3 05:34
Ok, I've done that. At least I found my MP4 files.
But that's all there is.
[view_image]

Are the video files on your SD card?
Flightlog are stored on the internal memory

BUT   if you connect the USB cable before the complete startup of the RC is done ; internal memory does not show!!

ReproRetro Posted at 1-3 04:47
I missed part of your question. I used the soft button the the screen

imo  best is to use the RC button to activate RTH.

for the non-screen RC users (nor sure for the screen RC) , if the connection mobile device<>RC is bad....pressing the soft button in the app does not activate a RTH. And yes, if you are aware of the hard RC button, no problem.
But it happend that users keep on pressing only the soft button.....

JJB* Posted at 1-3 05:36
Are the video files on your SD card?
Flightlog are stored on the internal memory

Yes, the videos are non the card.
I connected the RC Pro to my PC via USB, but it's not showing up.
So on the RC Pro, I clicked on "Files" and have had some success.
Under "Document" I have found a bunch of flight records, but they just go from March 22 (when I started using it) to Sep 4 22. Nothing later

ReproRetro Posted at 1-3 06:03
Yes, the videos are non the card.
I connected the RC Pro to my PC via USB, but it's not showing up.
So on the RC Pro, I clicked on "Files" and have had some success.

Make sure you've synced all your flights within the App. If this flight has been recorded, then you'll see it in the sync list and it will exist on the drone.

I've been there before, it can be a pain to find the logs sometimes.

JJB* Posted at 1-3 05:47
imo  best is to use the RC button to activate RTH.

for the non-screen RC users (nor sure for the screen RC) , if the connection mobile deviceRC is bad....pressing the soft button in the app does not activate a RTH. And yes, if you are aware of the hard RC button, no problem.

Thank you. I will remember that

CloudVisual Posted at 1-3 06:11
Make sure you've synced all your flights within the App. If this flight has been recorded, then you'll see it in the sync list and it will exist on the drone.

I've been there before, it can be a pain to find the logs sometimes.

Looks like my bad. In my panic I misremembered the message. I have found the flight log, and it was the signal is "blocked" not "Jammed".
Funny how the mind can play tricks

CloudVisual Posted at 1-3 06:11
Make sure you've synced all your flights within the App. If this flight has been recorded, then you'll see it in the sync list and it will exist on the drone.

I've been there before, it can be a pain to find the logs sometimes.

Hi,

"it will exist on the drone"  uh?  

AFAIK flightlogs are only to be found in the FlyApp (so on the mobile device / RC / RC pro)

If you sync logs with DJI, and they are not on the device. Play the video back and the flightlog.txt is copy paste from the server to the device.

cheers
JJB

JJB* Posted at 1-3 05:36
Are the video files on your SD card?
Flightlog are stored on the internal memory

Looks like my bad. In my panic I misremembered the message. I have found the flight log, and it was the signal is "blocked" not "Jammed".
Funny how the mind can play tricks

Labroides Posted at 1-3 02:20
If the drone was actually being jammed, there's no reason to believe that the cause was directly below the drone at the time.

I've heard quite a few people guess that their drone was being jammed, usually there was another explanation.

Looks like my bad. In my panic I misremembered the message. I have found the flight log, and it was the signal is "blocked" not "Jammed".
Funny how the mind can play tricks

ReproRetro Posted at 1-3 06:03
Yes, the videos are non the card.
I connected the RC Pro to my PC via USB, but it's not showing up.
So on the RC Pro, I clicked on "Files" and have had some success.

ok, i do not have a RC pro.

On my RC the flightlogs are saved in the following folder.

\\DJI RC\*.*      *.* = all the flightlog.txt

Dirty Bird Posted at 1-2 18:52
What was the specific error message?  Did it actually say you were being jammed or just that there was interference between the RC & drone?  The latter is normal if you go beyond range, behind an obstacle, etc..  I have never seen a message stating, "Your drone is being jammed."

Looks like my bad. In my panic I misremembered the message. I have found the flight log, and it was the signal is "blocked" not "Jammed".
Funny how the mind can play tricks

Blériot53 Posted at 1-3 01:03
A lucky escape   Do you know now what the building is used for?  Certainly an area to stay away from in future.

Looks like my bad. In my panic I misremembered the message. I have found the flight log, and it was the signal is "blocked" not "Jammed".
Funny how the mind can play tricks

TonyPHX Posted at 1-2 18:22
What was the actual error message?

Looks like my bad. In my panic I misremembered the message. I have found the flight log, and it was the signal is "blocked" not "Jammed".
Funny how the mind can play tricks

ReproRetro Posted at 1-3 06:16
Looks like my bad. In my panic I misremembered the message. I have found the flight log, and it was the signal is "blocked" not "Jammed".
Funny how the mind can play tricks

still would be nice to see the log....

That is why i always screen record my flights!
Always nice to check what i have missed watching the drone and not the screen.

cheers
JJB

JJB* Posted at 1-3 06:29
still would be nice to see the log....

That is why i always screen record my flights!

Sure.
Here's the link. Starts from 5m 16.5s
https://www.phantomhelp.com/LogViewer/9V0NU5TNTNESTUDEEK16

JJB* Posted at 1-3 06:16
Hi,

"it will exist on the drone"  uh?  

Badly worded by me.

OP was saying that he couldn't find the logs. If he syncs them and they're visible on the logbook page of the app then he knows the .txt file is in there somewhere.

JJB* Posted at 1-3 06:29
still would be nice to see the log....

That is why i always screen record my flights!

How do you screen record your flights?