System Installation
2019Q2
Intel® RFID Sensor Platform (Intel® RSP)
338088-002
Page: 45
Installation & User Guide
10.3.6.3
Proper RF Cable Type
The type and length of coax cable can greatly affect the tag read performance of the
installation. RF performance (aka read range) is determined by a combination of transmit
power, receive sensitivity, cable losses, antenna gain and tag type. For a given RFID reader
and tag, the variables to consider during installation are cable losses and antenna gain. The
longer the cable, the greater the loss. If longer coax cable runs are required, a larger
diameter, lower loss cable type should be used to mitigate the losses due to the increased
length. The table below, Cable Loss Chart is provided for common coax cables used for
RFID installations
Length (ft)
LMR-195
LMR-240
LMR-400
LMR-600
5
0.6 dB
0.4 dB
0.2 dB
0.1 dB
10
1.1 dB
0.8 dB
0.4 dB
0.3 dB
25
2.8 dB
1.9 dB
1.0 dB
0.6 dB