Table 2-2: If Cables Requirements; Table 2-3: Maximum If Cable Length (Double Shielded Cables) - Nera WILINK I System Manual

Chapter 2 - Installation Guidelines
2.1.3 IF Cables
The AU-ODU is connected to the AU-IDU via an IF cable carrying both signals
and power. The maximum permitted attenuation of the IF cable at applicable
frequencies, its screening effectiveness and its maximum permitted DC resistance
(the sum of the DC resistance of the inner and outer conductors) are provided in
Table 2-2.
Item
Screening Effectiveness
IF cable Impedance
Maximum IF cable Attenuation
Maximum IF cable DC Resistance
Maximum IF cable Return Loss
To comply with the required screening effectiveness requirement, it is
recommended to use double shielded cables. Table 2-3 provides details on
maximum length for some popular cables.
Cable
LMR-195
LMR-240
26

Table 2-2: IF Cables Requirements

Table 2-3: Maximum IF Cable Length (Double Shielded Cables)

WILINK I MODULAR BASE STATION SYSTEM MANUAL
Description
90 dB minimum in the 10-300 MHz band.
50 ohm
19 dB @ 240 MHz
15 dB @ 140 MHz
8 dB @ 64 MHz
4.0 ohm
20 dB in the 10-300 MHz band
Maximum Length
80 meters
150 meters