> tail -f field_notes/hf-vs-uhf-rfid-when-short-range-is-right.log
HF vs UHF RFID: When Short Range Is the Right Choice
● GTA Deployment Team · 11/06/2026
UHF RFID wins on range — up to 12 meters for a passive tag — but long range isn't always the advantage. HF RFID (13.56 MHz) only reads within roughly 10 cm, and that's a feature, not a limitation, for use cases like access control or payment taps: you want the system to read the one card someone deliberately presents, not every card within a few meters.
The Chainway R1 supports both HF and UHF in a single desktop unit, so a facility that needs both — HF access control at the entrance, UHF inventory in the warehouse — doesn't need two separate systems.