This dataset provides first experimental code-based GPS receiver antenna calibrations for analysis and integration in practical applications. Please note, that the data is in experimental status and no (!) official calibration product. Thus, it is free for scientific research/use only. Several GPS receiver antennas have been calibrated and are provided in this zip-package. The author is interested on any use of the data set and any reply to improve the Code Phase Variation (CPV) estimation process.