Three replacement GNSS antennas for Trimble GPS systems

Description

Three replacement Trimble R8 GNSS antennas for the team's GNSS/GPS system. The current antennas are 10 years old having been inherited from Assessment Team colleagues and their water-proof seals are beginning to fail. Other elements of the GPS system (TSC3 controller, accessories and batteries) are newer having been replaced by the Geophysics Team more recently so it is intended only to replace the three antennas with this purchase. The GNSS system is critical to the operation of all Geophysics Team towed magnetometer and GPR survey for location and navigation. It is only through use of these towed systems that it is possible to operate effectively with low staff numbers.

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