Expected format per line (tab-separated, copied from fmlist.org): MHz Block UTC ITU Ensemble + Location Details Remarks NNNkm TII
A header row starting with MHz is skipped automatically.
Date formats detected automatically: YYYY-MM-DD, DD/MM/YYYY, Month D YYYY, D Month YYYY.
Multi-term search: Enter multiple terms like 7B Bremen to match all terms, or multiple blocks like 5A 5B or 5A, 5B to show rows with any of those blocks.