Dr. Jonathan Kramer's Cell Tower Photo Gallery

Copyright 2000-2017 Dr. Jonathan Kramer

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GPS and LMU antennas

The GPS antenna (the pointed white dome) is used to receive satellite-delivered timing signals used to sync a large-area wireless network.

The LMU (Location Measuring Unit) antenna, which in this photograph is mounted on a bracket to the left of the GPS antenna) is used to help a wireless carrier locate its users as required by the FCC for wireless E-911.

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