Andrew Wireless System NCM843 Manuel D’Utilisation

4 Installation 

 

 

Page 33

  
The Node M/C’s antenna connectors are 7/16 female (optionally equipped with an N 
female adapter). All connectors are located at the bottom of the cabinet. An operator 
should refer to the documentation of the cable connector manufacturer for best 
mating procedures. Furthermore, the bending radius of the antenna cables should be 
maintained at all times. 
 
There are several issues to be considered when selecting the cable and antenna 
types. 

    Highly directional antennas with good front-back-ratios (40 dB is typical) are 

recommended because they improve isolation and cell site selectivity. 

    Smaller diameter cables are less expensive and easier to install but have 

worse performance. 

 

Tighten the 7/16 or N connectors ONLY by hand. The use of pliers may cause 
damage to the connector and impair the performance of the Node M/C. 
 

 

Diversity

Mobile

BTS 

Coverage antenna 
(to mobile) 

Donor antenna 
(to

 

base station)