Hello dear experts,  I am interested in this question, is the video link from the Mavic 2 Pro (and other models) always the same strength, or does the signal power change depending on how far away the drone is? I haven't found any more detailed information.  For battery-saving reasons alone, it would make more sense for the drone that is immediately in front of the remote to not necessarily transmit 100% of the power. If it is more than a couple of kilometers away, it already makes sense to go to full range.   Are there any documentation already existing on this topic?   I am also interested in the format of the video link. Is there a specific protocol for transmitting the data (if it is not a secret)?  Many greetings, Nik

The transmitted signal level is the same irrespective of distance. The signal is supposedly DJI's proprietary Occusync, but it is primarily an MPEG stream with built-in forward error-correction.

Hi there. Thank you for reaching out. The DJI Mavic 2 series uses Ocusync which allows the drone to switch between 2.4GHz and 5.8GHz automatically with stronger anti-interference capability. Also, The smartphone clamps if the remote controller houses the antennas. Make sure that the antennas are pointed toward the aircraft. Check the user manual for more information about settings the antenna direction. Additionally, please avoid high-density Wi-Fi signal sources, and consider turning off Bluetooth on your mobile device to ensure stability during flight. Should you have other inquiries, please don't hesitate to reach us. Thank you for your valued support.

DJI Paladin Posted at 11-17 19:03
Hi there. Thank you for reaching out. The DJI Mavic 2 series uses Ocusync which allows the drone to switch between 2.4GHz and 5.8GHz automatically with stronger anti-interference capability. Also, The smartphone clamps if the remote controller houses the antennas. Make sure that the antennas are pointed toward the aircraft. Check the user manual for more information about settings the antenna direction. Additionally, please avoid high-density Wi-Fi signal sources, and consider turning off Bluetooth on your mobile device to ensure stability during flight. Should you have other inquiries, please don't hesitate to reach us. Thank you for your valued support.

Thank you very much for answering. What about the power consumption? What power consumption has approx. the video transmission or telemetry and control link? Can you tell it approximately? I already know that the highest power consumption is triggered by the motors.  

Link transmission power range is pretty insignificant when compared to all the other power drain functions on the drone (CPUs, 4 x motors, camera etc).  Even on high power it is in reality low.

The transmit powers are labelled on the device and vary depending if you're in CE/FCC or other regions.

FCC：≤26 dBm
CE：≤20 dBm
SRRC：≤20 dBm
MIC：≤20 dBm
5.725-5.850 GHz
FCC：≤26 dBm
CE：≤14 dBm
SRRC：≤26 dBm

Convert those to actual watts and the differences are small and importantly insignificant compared to everything else.

The bit rate of the video is adaptive in that it'll automatically reduce in the link quality decreases.