G.Low elevation issue.
Because GEO satellites are all over the
equator ,when VSAT terminal is in high latitude area, the elevation
angle of VSAT pointing is low (maybe less than 20°). In this case,
antenna will easily miss pointing with high wave so link may be broken
by this reason. In high latitude area, GEO satellite VSAT may not work
smoothly.
E.Interference issue.
If not installed with safe distance from RF
source like radar ,VHF Tx antenna, GPS , AIS ,etc., VSAT antenna
will get bad reception effected by RF interference.
F.Weather issue.
The rain attenuation, caused by
rain or thick clouds at the location of the antenna
and the hub station, affects the stability of the
satellite link.
If the SATCOM link broken, it may come from below reasons
( Factors effect link stability)
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Appendix 4
Troubleshooting Guide---Failure Cause
