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Hello Paul, From the header in vors.tbl, it appears the data first came from the Aviation Weather Center (AWC). From their website I can find http://aviationweather.gov/static/info/advsry/ and http://aviationweather.gov/static/docs/advsry/advisory.txt Their file has 323 entries while the GEMPAK vors.tbl has 387 entries. Some of the GEMPAK data tables include stations no longer used operationally so that archived data of any manner can be displayed. That is likely why the NAWIPS/GEMPAK table has more entries than the AWC maintains. -Michael Unidata > So far, the best source I have found for the locations of VORs is in your > vors.tbl file, located deep within the GEMPAK7/gempak/tables/stns > directory of the GEMPAK source distribution. I can use that, but I have to > wonder where you got the data. If you can point me to a more authoritative > source, perhaps within the FAA or NWS, I would much appreciate it. > > Thank you. > > > > Paul H Harder II, Ph.D., AMS / Sr Software Engineer / Weather Systems > MS 437-100, 2925 Briarpark Drive, Houston, TX, 77042, USA > Phone: 713-430-7081 / VPN: 430-7081 / Mobile: 281-799-1458 > address@hidden > www.rockwellcollins.com > > > Ticket Details =================== Ticket ID: NAG-770104 Department: Support GEMPAK Priority: Normal Status: Open