All antenna calibrations published on the NGS ANTCAL web page have been approved
by NGS for use in all its products and services.
Absolute Antenna Calibrations values are now the default values on this page
and appear on all the antenna specific pages. These Absolute values should be
used when processing data with CORS coordinates in IGS08 epoch 2005.00 and
NAD 83(2011,MA11,PA11) epoch 2010.00 coordinates. These calibrations are
different from earlier NGS calibrations that were relative antenna calibrations.
For more information on the new CORS coordinates see:
If you are processing data with old CORS coordinates in ITRF00 epoch 1997.00 and
NAD 83(CORS96, PACP00, MARP00) epoch 2002.00 you should use the Relative Antenna
Calibrations available at the bottom of this page in table format only.
Please consult the FAQ on the left which contains additional information on
the use of Absolute vs Relative Antenna Calibrations.
Are you unable to find calibrations for your antenna? NGS will calibrate geodetic-grade antennas submitted
by manufacturers and interested parties. Please consult the
and the AntCal Procedures
for more information.