| | 1 | = Converting Raw GPS Base Station Data to RINEX = |
| | 2 | |
| | 3 | These instructions currently only cover converting Trimble GPS data to RINEX, though teqc can convert other formats. |
| | 4 | |
| | 5 | Note: You are advised to take a backup before doing all this - these utilities will cheerfully overwrite your source files with garbage if misused. |
| | 6 | |
| | 7 | == Converting raw Trimble data (*.T00) to Trimble DAT format == |
| | 8 | |
| | 9 | 1. Check you have runpkr00 installed (http://facility.unavco.org/software/download_transfer/trimble/trimble.html) |
| | 10 | 1. For each raw GPS file (*.T00), run `runpkr00 -dveai <filename>` |
| | 11 | * This should generate three or four files per input file - .dat (GPS observations), .eph (GPS ephemeris), .ion (Ionosphere information?) and possibly .app (?). |
| | 12 | |
| | 13 | == Converting Trimble DAT format to RINEX == |
| | 14 | |
| | 15 | 1. Check you have teqc (http://facility.unavco.org/software/teqc/teqc.html). Note this doesn't install, it's just an executable that should be in the path somewhere. |
| | 16 | 1. Check which Julian day your GPS observations were collected on. |
| | 17 | 1. for each .dat file created above, ensure the other files are in the same directory and run `teqc -week YYYY:JJJ -tr d +nav <output_filename>.YYn <dat_filename> > output_filename.YYo` |
| | 18 | * In that command, YYYY is a 4-digit year, JJJ is the julian day on which the GPS observations start, YY is a two-digit year. |
| | 19 | * Note: If you forget to give the nav filename (*.YYn) and just give the input DAT file, that command will overwrite your input file with garbage. '''Don't forget the nav file.''' |
| | 20 | * This should generate RINEX files that can be read by Grafnav/Grafnet as normal. |