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Search 3: a search pattern 3 will automatically be initiated when AGC falls below
the current tracking level threshold value. If the desired signal is found and above the
predened tracking level, the ACU will terminate Search 3 and go into TRACKING mode.
A search pattern will automatically be initiated when AGC falls below the current
threshold setting (indicates that satellite signal has been lost). Search is conducted
in a two-axis pattern consisting of alternate movements in azimuth (AZ) and elevation
(EL) as forming expanding square indicated as below diagram.
Elevation
(EL) Range