Abstract
Temperature variations cause signal delay changes in GPS receiver and antenna and can be of the order of 0.1 ns/degC. Temperature stabilization of GPS antenna and receiver can increase the accuracy of time transfer by 2 to 3 ns. A temperature stabilization system for Motorola Timing 2000 GPS antenna has been developed. The temperature regulator and insulating layer fit inside the antenna cover. The gain pattern of the antenna remains unchanged and its temperature is stabilized to plusmn0.5degC around +59.5degC. Tests with new antenna confirmed the gain in accuracy that could be expected.
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