A GPS receiver is disclosed which has an omnidirectional antenna and a directional antenna and is configured to (i) acquire a first GPS signal from the output of the directional antenna, either alone or combined with the output of the omnidirectional antenna, and (ii) acquire a second GPS signal from the output of the omnidirectional antenna alone. Also, disclosed is a GPS receiver having an omnidirectional antenna and a directional antenna which is configured to acquire a GPS signal from the output of the directional antenna alone.