Why do Meinberg GPS systems use only 12 channel receivers, not 32 or 72 channels?



A GPS receiver must track 4 satellites to calculate its position and determine the exact time. The receiver position must be known in order to compute the distance of each satellite from the own location and thus be able to account for the transmission delay of the radio signal. Once the receiver position has been determined and is left unchanged, only a single satellite must be tracked to keep the accurate time. Meinberg GPS receivers are mainly used as reference time sources which are installed in a fixed location, so normally the position changes only if the device has been installed at a new location. This is why 12 channels are more than sufficient for reliable operation.

Meinberg 12-Channel GPS Receivers

Low Profile GPS Clock (PCI Express)

Low Profile GPS Clock (PCI Express)

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Clock Module with GPS Satellite Receiver

Clock Module with GPS Satellite Receiver

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GNSS receivers with more as 12 channels have been mainly designed for navigation in moving vehicles where more channels have advantages if the vehicle is moving around e.g. between buildings and trees.

GNSS Receivers - also for mobile Applications

Clock Module with Multi-GNSS Receiver for GPS, Galileo, GLONASS, and BeiDou

Clock Module with Multi-GNSS Receiver for GPS, Galileo, GLONASS, and BeiDou

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