Frequency range: Key fobs vs Vehicle Transponders
Low-frequency (LF) door readers and ultra-high-frequency (UHF) readers are two types of RFID readers. They operate at different frequency bands. Additionally, they have distinct characteristics and applications. Here is a comparison of LF door readers and UHF readers:
Frequency Range:
- LF Readers: First, LF readers typically operate in the frequency range of 125 kHz to 134 kHz.
- UHF Readers: Operate in the ultra-high-frequency range, typically around 900 MHz to 960 MHz.
Read Range:
- LF Readers: Have a relatively short read range, typically ranging from a few centimeters to a couple of meters. However, it depends on the type of LF RFID tag and reader.
- UHF Readers: Offer a significantly longer read range, often exceeding several meters. UHF RFID is known for its long-range capabilities.
Antenna Size:
- LF Readers: LF antennas are generally smaller. Additionally, they are more compact and suitable for applications where space is limited.
- UHF Readers: UHF antennas are typically larger due to the higher frequency. This allows for longer read ranges but requires more space.
Summary
In summary, LF door readers and UHF readers differ in frequency because of range, read range, and antenna size. LF readers operate at 125 kHz to 134 kHz, with short read ranges and compact antennas. In contrast, UHF readers operate around 900 MHz to 960 MHz, offering long read ranges with larger antennas. Each type is suited to specific applications based on these characteristics.
