Owner manual

Guilin Feiyu Electronic Technology Co., Ltd.
Guilin Feiyu Electronic Technology Co., Ltd http://www.feiyu-tech.com [e-mail]
Page 6
to initialize (Red light continuous flashing), only in that you will know the GPS positioning success or not.
7. Vibration damping installation
Damping installation: Good damping installation is the basis of DOS can do normal work, also can decide
whether DOS to maximize play flight performance or not, and make sure you have a great flight. Otherwise
may cause serious flight accidents, for example: flight jitter, flight attitude gradually deviation and tilt from the
balance position, and Hovering mode unable to keep the flight altitude and position. You can use your own DIY
shock absorbing devices to do the shock absorbing, but we recommend using suspending damping installation,
especially use DOS vibration absorbing mount which product by FeiYu Tech,it can meet the requirements of
most of the conditions, and in addition you need to try to reduce the vibration of the motors and oars.
Installtion position: Each modules install to a suitable position is conducive to further enhance the
performance of Hovering mode. DOS module installation position should be as far as possible to close to the
center of the aircraft, the aim is to reduce the disturbance to the internal IMU position sensoring when the
aircraft tilt or rotate. In addition also you have to consider a very important factor, that is as far as possible to
reduce the interference to the DOS internal magnetic sensor which caused by installation position. There will
be caused interference to magnetic sensor,such as surroundings have strong current, motor rotation, battery,
etc. We need to do is to give full consideration of these two factors, compromise to select a suitable position for
install it. GPS module should be placed as far as possible to the center position,that can reduce the
interference to GPS data when it level rotating. Also you can put the GPS module to a high place use a stent
（The GPS support height should not less than 80 mm）, the practice shows that can effectively reduce the
interference to GPS signals which caused by other devices, and improve the positioning performance of GPS
module.
We recommed using suspending damping installation, especially use DOS vibration absorbing mount
which product by FeiYu Tech.(You can find purchase method from FeiYu official website: www.feiyudz.cn )
Installation process as follows:(You need a allen driver)
New DoS vibration absorbing mount like picture below shows: