COBHAM Sea Tel 9711-56 IMA C Band, Installation Manual

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Setup – Ship’s Gyro Compass Sea Tel 9711-56 IMA
7-2
EAR Controlled - ECCN EAR99
No gyro mode is used when you do not have a gyro compass, the ship does turn and you will use
“Sky Search” to initially acquire the satellite. The Sky Search drives the antenna to the calculated
elevation angle and then drives azimuth CW 360 degrees, steps elevation up and then drives azimuth
CCW 360 degrees and continues to alternately steps elevation up/down and drives azimuth
alternately CW/CCW 360 degrees. Because of this large search area, acquiring the satellite will take
MUCH longer than if you have valid heading input.
1. Turn on SAT REF Mode. (It must be
turned on.)
This combination of settings will cause “No Gyro” Search pattern to be use to find the desired satellite (refer
to the setup – Searching chapter).