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Ultrasonic spark sensors turn off in the fog?
1792 12 2018-1-7
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Ricardo Ghion
Captain
Flight distance : 1042037 ft
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Brazil
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Ultrasonic spark sensors turn off in the fog?
2018-1-7
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Tommy Vu
lvl.2
Flight distance : 4564 ft
Vietnam
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As I known that Spark does not have Ultrasonic Sensor. It only has a downward IR Sensor (RX TX) and a depth IR camera in front.
2018-1-7
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DJI Elektra
Administrator
China
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Hi, there. Please note that if there is stain on the camera, the app may have this reminder, too. We would not recommend users fly through fog and cloud.
2018-1-8
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Ricardo Ghion
Captain
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Brazil
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DJI Elektra Posted at 2018-1-8 00:42
Hi, there. Please note that if there is stain on the camera, the app may have this reminder, too. We would not recommend users fly through fog and cloud.

What reason ?
2018-1-8
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jksphoto
Captain
Flight distance : 114121 ft
Sweden
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From previous posts about fog, it seems the downward sensors get confused with fog, making the Spark think its lower than it is, auto landing has then started causing the Spark to drop out of the sky.
2018-1-8
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DJT_MVSP
Captain
Flight distance : 2018642 ft
Singapore
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jksphoto Posted at 2018-1-8 04:34
From previous posts about fog, it seems the downward sensors get confused with fog, making the Spark think its lower than it is, auto landing has then started causing the Spark to drop out of the sky.

More like spark gets confused and will descend so slowly that it will run out of battery before it even gets near the ground
2018-1-8
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Ricardo Ghion
Captain
Flight distance : 1042037 ft
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Brazil
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jksphoto Posted at 2018-1-8 04:34
From previous posts about fog, it seems the downward sensors get confused with fog, making the Spark think its lower than it is, auto landing has then started causing the Spark to drop out of the sky.

the new firmware should have fixed this because it is now shut down
2018-1-8
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jksphoto
Captain
Flight distance : 114121 ft
Sweden
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DJT_MVSP Posted at 2018-1-8 04:39
More like spark gets confused and will descend so slowly that it will run out of battery before it even gets near the ground

Yes, because its trying to land. That's why its descending.
2018-1-8
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DJI Elektra
Administrator
China
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It may cause unexpected accident as many users found it hard to land their spark when they flew across cloud. Safety comes first.
2018-1-12
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Spark in the Park
lvl.4
Flight distance : 689259 ft
Australia
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My spark is doing similar things it giving out erratic altitude readouts since last app update on android as a result it refused to land today it just hovered at 100 odd meters and refused to come down any further ! I initiated landing sequence but still just kinda chilled out up there till it hit critical battery level and was forced down. It was telling me it was negative 1.8 meters even though itnwas over 100 meters in the air. I tried two different mobiles and both have latest version of the app.
2018-2-25
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DrohneMann
Second Officer
Flight distance : 87415 ft
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United States
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Common Sense Dude
2018-2-25
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Gunship9
Captain
United States
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Spark in the Park Posted at 2018-2-25 02:01
My spark is doing similar things it giving out erratic altitude readouts since last app update on android as a result it refused to land today it just hovered at 100 odd meters and refused to come down any further ! I initiated landing sequence but still just kinda chilled out up there till it hit critical battery level and was forced down. It was telling me it was negative 1.8 meters even though itnwas over 100 meters in the air. I tried two different mobiles and both have latest version of the app.

Look at the downward sensors with a magnifying glass.  They might need cleaning from finger or palm print that light up when exposed to moisture in the air.
2018-2-25
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Strobing_NYC
First Officer
Flight distance : 3866470 ft
United States
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It's normal for thw spark to that in fog and mist. It's a real pain in the butt as some good images come when it's foggy or Misty out. Just know it's a feature of the Spark and most DJI drones, just with the spark there is no way to turn off the GPS system
2018-2-25
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