{HEAD ~ The SATPS unit} includes {TAIL ~ a SATPS antenna} and a SATPS receiver for receiving signals from satellites of the SATPS and a radio for coupling the received signals to the rover unit 
{ HEAD ~ The SATPS unit } includes { TAIL ~ a SATPS antenna } and a SATPS receiver for receiving signals from satellites of the SATPS and a radio for coupling the received signals to the rover unit
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