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When would you choose UWB over Bluetooth / BLE or Wi-Fi?

  • Administrator
  • 12/06/2025

UWB offers very high data transfer rates (≈ 1 Gbps) over its range (~10 meters), which can be useful when high-speed short-range data exchange is needed. Because of its characteristics, UWB is particularly suited for applications like indoor navigation, asset tracking, and proximity-based services. Also, compared to other longer-range or lower-data-rate technologies, UWB can play a unique role when both speed and short-range precision are required.

How does Ultra-Wideband (UWB) compare to NFC?

  • Administrator
  • 12/06/2025

UWB is very distinct technology than NFC, here is how:
  1. UWB operates over a wide frequency spectrum (e.g. 3.1 GHz to 10.6 GHz) and can deliver very high data rates, much higher than NFC.
  2. NFC operates at a fixed frequency (13.56 MHz), at low data rates.
  3. UWB supports accurate ranging and positioning capabilities (centimeter-level accuracy), which NFC cannot; NFC is mainly for simple short-range communication.

What is the difference between Bluetooth and NFC?

  • Administrator
  • 12/06/2025

The difference between BLE and NFC is as follows:
  1. Bluetooth (or Bluetooth Low Energy, BLE) works over a relatively longer range (tens to hundreds of meters) and supports higher data transfer rates.
  2. NFC operates only over very short distances (a few centimetres); ideal for very close-range data exchange or tap-to-connect scenarios.
  3. NFC setup is simpler, often requires little or no pairing, and consumes very low power, making it suitable for quick, low-data tasks (e.g. payments, access control).

What frequency-based classifications exist for RFID tags and how do they affect read range?

  • Administrator
  • 12/06/2025

RFID tags are classified by frequency as well:
  • Low Frequency (LF): around 125 kHz; generally short read range (few centimeters), often used in access tags, identification cards. 
  • High Frequency (HF): around 13.56 MHz (same as many NFC-type tags); read range up to ~1 meter; used for access control, event cards, ID cards. 
  • Ultra-High Frequency (UHF): 860–960 MHz (ISM band globally); passive UHF tags offer read range ~15 m, active UHF tags up to ~100 m

What kinds of RFID readers are available and How should one choose a specific type?

  • Administrator
  • 12/06/2025

RFID readers are available as handheld readers, fixed readers, USB readers, or integrated readers (with built-in antenna). Depending on your use-case, for example, mobile asset auditing, fixed gatewise scanning, or desktop-based reading; you should choose a reader type whose frequency matches your tags.

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