One goes and looks up the model number on a site like UNAVCO's knowledgebase?
http://facility.unavco.org/kb/questions/458/Summary+of+GNSS%7B47%7DGPS+Antennas+and+Antenna+Information On 8/14/09 6:51 AM, "John Green" <[email protected]> wrote: Mark Sims wrote:The quality of the results match the quality of the antenna. A geodetic/survey grade antenna gives results to within a few inches. A conical timing antenna within 8 inches. A cheap patch antenna around a foot. I took one of those conical timing antennas apart only to find that it has the same ceramic patch as most cheap GPS antennas. How is a survey grade antenna different? I would like to be able to know one when I see it. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
