User Manual

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Q： Cannot locate home, displaying “Waiting GPS Home”
A： Seeing OSD “Waiting GPS Home” proves GPS wiring is OK, otherwise, please check GPS wiring.
GPS’s white antenna shall face up; keep GPS away from Video TX and Camera. Some inferior Video TX’s
antenna will affect GPS, too. You can try to remove the casing of GPS, or put a layer of tin foil paper under GPS to
enhance the performance.
GPS can only work Outdoors, First time about 5-10 minutes, next power on of the same day it would take
less than 10seconds to locate.
Q： Plane tilts under Balance Mode / Manual Mode, can I adjust the radio TRIM
A： First time installation, do a neutral point alignment. Radio stick and SUB-TRIM back to center, adjust plane’s
CG and travel angle to make plane balanced.
Arkbird can produce compensation when CG & travel angle is not appropriate, but it is not mechanical
stable, there would be hidden trouble under RTH mode. So firstly make sure plane can fly stably in horizontal
under Manual Mode.
Q：Inaccurate Return-To-Home
A： Adjust remote control rudder angle to 100% and sub-trim back to center. Check carefully in reference to the
“Debugging Skills for Balance and RTH Mode” chapter of our instructions.
Make ground video recordings. When switching to RTH or other autonomous flight modes, Roll/ Pitch
inclination value and throttle control value will be shown at the bottom right corner of OSD. These data will tell
you if the control values are proper and will help you judge which parameter needs to be sub-trimmed.
13 Attentions:
Please read through carefully:
1. The design purpose of autopilot is to keep balance of flight, it is not able to manipulate plane or prevent stall.
You must have sufficient experiences of fixed wing to control the flight.
2. The autopilot is only for small-scale RC model. For safety concern, please do not install in plane for aerial
photography which might fly over crowd.
3. Please install the autopilot depends on your demands and check the condition before flying every time.
4. Any equipments and electric products on the plane couldn’t be completely reliable, please using this system
following the instruction. The system provider is not responsible for any direct or indirect loss and consequence
caused by using this product.
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