RFID Accessories

RFID Cable and End Connectors

RFID LMR 240 Cable DiagramCable type is very important to the overall performance of the RFID implementation. Ensuring you use the right cable cut to the right length and using the right ends can have a drastic impact on your readers ability to detect tags. Quality cable guarantees you'll get maximum distance and faster reads.

Low loss cable with high conductivity connectors reduce your potential signal noise, providing the reader with a clean, easy to interpret signal that results in a faster read rate.

RFID TNC RP Cable Ends.jpg

SkyRFID supplies high quality LMR 240, LMR 400 and LMR 600 UV resistant polyethylene jacketed cable. We also stock LMR -DB which is watertight at very competitive prices.

All LMR cable is very flexible, low loss with better shielded than typical coax cable. Higher LMR numbers are thicker cables with better attenutation.

Calculating Your RFID Cable Length

Wavelength = 299792458 ÷ Frequency

Frequency = 299792458 ÷ Wavelength

125 kHz.
wavelength is
2,400 meters or 7,860 feet

13.56 MHz.
wavelength is
22 meters or 73 feet

433 MHz.
wavelength is
0.6924 meters or 2 feet 3.25 inches

900 MHz.
wavelength is
0.3323 meters or 1 foot .96 inches

NOTE: However 915 MHz. wavelength is 0.3246 meters or 1 foot .78 inches. This measurable difference becomes more noticable the longer the cable gets. Whole wavelength cable lengths provide the best signal strength.

LMR Cable Connectors

The proper quality ends are just as important to the overall read rate. Depending on which type of cable you need and the LMR rating you'll need different connectors. Conectors are supplied as straight connectors or 90° dependant on installation requirements.

Some of the more common cable ends are: Male N end cable connector for Most Gen 2 Antennas, Male RP-TNC for many cable to Reader end connectors and RP-SMA Female for other cable to Reader connections. Make sure you know the cable end connections and the cable length before you order your cables.

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