User Manual

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Document #7201-002, Rev C Page 7
In the diagram above, the relative range is displayed as a function of the cable length.
Relative, because the range is dependent on the environment of the system. Under ideal
conditions (free field, high-sensitivity tags, high-sensitivity i-PORT, maximum output
power), ranges of up to 100 meters can be achieved. But if 20 meters of RG58 antenna
cabling are used, the cable loss of approximately 12 dB, will reduce the maximum range to
just one-quarter (25 meters)!
NOTE: The range losses as displayed in the diagram are independent of the original
range. If the range is 30 meters (free field, low-sensitivity tags, low-sensitivity i-PORT,
maximum output power) and 10 meters of RG58 antenna cabling are used, the range is
reduced by 50%.
Cable Length vs. Range
0
10
20
30
40
50
60
70
80
90
100
0.005.0010.0015.0020.00
Cable Length (m)
Range (%)
Range
c