Manual setting of GPS coordinates.
Maybe there is strong magnetic field interference near the antenna.
Move the antenna to another place, Calibrate the electronic compass.
Check the GPS reading on APP. If there are no readings, troubleshooting as No.1 description.
Check the initial azimuth reading on APP. If it is derivate from the equator direction ±30°, move the antenna to another place or calibrate the electronic compass.
Check the target satellite parameters, if something wrong with them, correct the faults.
Check whether there are some trees, power lines, chimneys, billboards, water towers, high buildings and other objects in 5 degree cone angle at the direction of aligning withsatellite. If so, move the antenna to another place.
The received beacon level is too weak.
Antenna is not within the satellite footprint, perhaps.
Contact Yeehsat technician.
Tel: 86 10 – 82601268Fax: 86 10 – 82601559Mail: firstname.lastname@example.org
Address ：Room A2003,Caizhi International Building,Zhongguancun Eastroad, Haidian District，Beijing，China