Dual Frequency RFID Cards LF-UHF

What the LF + UHF dual frequency card adds to an access system

A 125 kHz proximity system works well at doors, where staff hold a card up to the reader. It does little at a vehicle gate, where the card has to be picked up from a distance as the car approaches. This badge pairs the LF chip your door readers already understand with a UHF EPC Gen2 chip that a long-range reader can see, so parking and gate control can be added without touching the door system or reissuing a different door card.

How each side is used

• 125 kHz side: presented at the existing proximity door readers exactly as before.
• UHF side: read by a UHF reader at a boom barrier, gate lane or yard entry. UHF readers in India operate on the 865–868 MHz band.
• Magnetic stripe: optional, if a swipe system is also in use.

Getting reliable UHF reads at a gate

UHF reads are affected by how the card is carried. A card pressed against the body or lying on a metal dashboard reads less reliably than one held up or clipped where the antenna can see it, so plan the reader position and card holder together and test with your own reader before a full rollout. Gate lanes are usually covered by a UHF integrated reader with a built-in antenna, wired to the barrier controller or access panel.

Moving doors to MIFARE instead? See the LF + HF card. Our access control setup guide covers readers and panels.