Furthermore, the new standard (expected 2025–2026) will introduce better support for antenna calibration and multi-frequency observations. Converters like RTKLIB are expected to update to support HCN → RINEX 4 conversion soon after.
TEQC primarily supports older HCN formats from Trimble 4000 series receivers. Modern HCN files may fail.
The "story" of HCN conversion isn't always seamless. Surveyors occasionally encounter files that refuse to convert through standard utilities. In these cases, alternative workflows—like using different versions of
The primary reason for conversion is . While CHCNAV’s own software, CHC Geomatics Office (CGO), can handle HCN files directly, other platforms cannot. Conversion allows you to:
receiver users to download and automatically convert HCN files during the import process. Trimble Convert to RINEX
No converter will fix this. You must apply clock steering in post-processing (e.g., using rtkpost in RTKLIB or clock_steer in GAMIT).
Look for "TRIMBLE" or "LEICA" in the header. If absent, the file may be empty. Re-download from receiver.
The HCN file may be an ephemeris-only file or corrupted header.