LG GDK-20W Manuel D’Utilisation

GDK-20W DIGITAL WIRELESS KEY TELEPHONE SYSTEM     
 

 

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                Figure 3.6.12 Maximizing Line of Sight 
 
 
 
 
 
 
 

Fading 

Fading refers to the attenuation caused when a signal is reflected and receiving antenna receives multiple 
instances of the signal. A direct signal is always stronger than a reflected signal. 

 

Base station is designed with two antennas and the capacity to choose the best suited antenna for carrying 
the strongest signal. This design minimizes chances of fading. 

 

Although signals can travel around corners, you should place base stations so that signals begin their paths 
with a clear line of sight as illustrated in Figure 3.6.12 and then bend to travel to a receiving antenna. It limits 
the effect of signal fading. 

 
 
 
 
 

Shadowing of the radio signal 

The following items may well cause shadowing of the radio signal: 
z

 

Thickness of walls, especially cavity walls and reinforced concrete walls. 

z

 

Windows or glass in doors with steel wire reinforcement or metallic reflection film. 

z

 

Steel doors, lift shafts, partitions or walls. 

z

 

Fire resistant doors 

z

 

A wall of steel cabinets, large computer equipment or machinery. 

z

  Thickness of concrete floors. 

 
 
 

 

Each base station supports four simultaneous calls, but because all users are not simultaneously in call 
statistically, a base station can support a greater number of wireless terminal users in practice. 

 

Number of Cell 

(Base station) 

Recommended Number 
of Registered Wireless   

Terminals 

Number of maximum 

Simultaneous Wireless 

Conversation 

1 4 
2 8 
3 

20 

12 

 
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