Active Station Search

National Grid Reference:
National Grid Easting and Northing (Metres):
ETRS89 GPS coordinates:
Nearest Number of Stations:
Enter the path to the coordinates file:

Please note:	Each coordinate MUST be on a new line in the file, and the file may contain one type of coordinate and no other information. The same coordinate type in the file must be selected above. The same coordinate format as used on the Active Station Rinex Data page must be used. The formats are given here. Click here for a sample file in National Grid Reference format. Click here for a sample file in National Grid Easting and Northing format. Click here for a sample file in ETRS89 GPS coordinates format.