What is LF,HF,UHF Card?

1. LF Rfid Card

Typical operating frequencies of low-frequency RF cards are 125 kHz and 134.2 kHz. The main characteristics of this type of radio frequency card are its small data storage capacity, slow reading speed, and usually does not support writing functions. The communication distance is limited to 10 centimeters. Although it can be expanded to 80 centimeters by adding equipment such as power amplifiers, there are major security risks, such as being easily copied and cloned. Therefore, it is not suitable for applications such as ID keychains and access cards in residential areas. were gradually eliminated. However, low-frequency radio frequency cards have low cost and strong anti-interference ability, so they still have certain application value in specific fields such as animal tracking.

 

2. HFRfid Card
The working frequency of high-frequency radio frequency cards is 13.56MHZ. There are many high-frequency card protocols. Common system ISO communication protocols include: ISO7816, 14443A, 14443B, 15693, etc. The application of this type of smart card has been very mature, and it also has fast The data reading and writing speed, the distance of 0-10 cm is very suitable for occasions requiring close communication, such as our second-generation ID cards, city bus cards, campus cards, book tags, NFC tags, consumer electronic tags All other products work in this frequency band. With the advancement of science and technology, in recent years, high-frequency CPU chip RF cards with strong anti-copying and anti-cracking security properties have gradually replaced M1 chips and become the new favorite of high-frequency cards, gaining more and more applications.

3. UHf Rfid Card
UHF RF cards generally refer to electronic tags working in the 860~960M frequency band. The protocols mainly include 18000-6B and 18000-6C. The typical characteristics of this type of smart cards and electronic tags are fast reading speed, long distance, and anti-collision. It has strong capabilities and is widely used in logistics pallet cards, turnover box cards, warehouse inventory cards, RFID vehicle management, jewelry management, file management, washing management and other fields. UHF radio frequency cards have unique long-distance reading and multi-tag groups. The reading function makes it easier to adapt to complex environments, and can be packaged into cards, printed labels, special labels and other complex forms according to actual applications.
Overall, choosing the appropriate RF card depends on the application scenario and requirements. Low-frequency cards have advantages in complex environments, high-frequency cards are suitable for scenarios that require stable transmission, and ultra-high-frequency cards are suitable for applications that require large-scale and high-speed identification.