A method for configuring a local positioning system comprises orienting a survey
antenna coextensively with a primary beacon associated with a work area. A transmitter
or transceiver transmits a first transmission signal from the survey antenna. A
receiver or transceiver receives the first transmission at one or more secondary
beacons associated with the work area. A data processor determines first elapsed
times from the transmission time of the first transmission signal to at least the
arrival time at respective corresponding secondary beacons. Each of the first elapsed
times falls within a filtering time window, or satisfies an edge timing criteria
of the coded signal, or both to reduce multi-path error. The first elapsed times
are converted into a first position in at least two spatial dimensions for the
primary beacon.