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Transmission loss, screen freeze.

Gduk

Well-Known Member
Join
Aug 27, 2019
Messages
57
Age
49
Hi, I was on a line of sight flight, not so far, 500 metres away, if that, with controller, my friend next to me 2 feet away makes a cell call , within seconds my screen froze black and white, i had to scramble to drone and then land it(it was over a bog and stream, lucky had some grass)video feed stopped, was it the phone call??
 

I B Spectre

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Aug 16, 2019
Messages
838
Very well could have been. You didn't say if you were using a phone to control the Spark, phone/RC via wifi or phone/RC with OTG connection. More info could provide clues.
 
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I B Spectre

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Aug 16, 2019
Messages
838
I gather than you are in the UK, not the US. From what I'm reading, the UK uses CE mode to control the Spark as opposed to the FCC mode in the states. Range for both modes and frequency bands has been stated as:

-2.4GHz: if FCC = 2km, if CE = 500m
-5.8GHz: if FCC = 2km, if CE = 300m

Altitude and things such as tree, buildings, topography would affect range as well. I presume you have had successful flights using the configuration with OTG. From what I can piece together reading about the control video going to black&white, it sounds like there was some sort of transmission interruption. The fact that this happened almost immediately when your friend made a cell call sounds like more than coincidence. Were there any cell towers close by when this happened?
 

nilanjan118

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Oct 31, 2018
Messages
1,011
If you were using the RC, did you check if the green LED was on? If you fly in LOS, you can control the bird with the RC even if the app freezes. I don't think it is something to be alarmed about. Sometimes the live feed freezes even when you have a loose OTG cable connection. Unplugging and plugging it back brings the screen back to life.
 
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