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Tsunami MP.11a Antenna Installation Guide
 
Maximum Range 
The maximum range of your Tsunami MP.11a system is based upon: 
▪ 
The Type of Outdoor Antenna Equipment 
▪ 
The Data Speed of the Wireless Link 
▪ 
The values in this section are based on calculations that assume optimal radio conditions.  They do not 
represent a guarantee that the same maximum distance can be achieved at your location. Differences in 
performance figures may result from: 
▪ 
Incorrect alignment of antennas (see “Antenna Alignment” on page 30).  
▪ 
Polarization mismatch of the antennas. 
▪ 
Sources of interference or unexpected reflections in the signal path that affect the communications 
▪ 
Severe weather conditions such as heavy rain or snow fall, or strong winds. 
▪ 
Seasonal influences such as leaves on trees, or icing on the antennas. 
Cable Factor 
Determine the Cable Factor from the following table to calculate the probable range for your installation. 
Table 1.  Cable Factor 
One side of link 
Other side of link 
Cable Factor 
6 m (20 ft) / 10 mm (0.4 in) 
100% 
6 m (20 ft) / 5 mm (0.2 in) 
71% 
15 m (50 ft) / 15 mm (0.59 in) 
89% 
15 m (50 ft) / 10 mm (0.4 in) 
71% 
6 m (20 ft) / 10 mm (0.4 in) 
22 m (75 ft) 
52% 
6 m (20 ft) / 5 mm (0.2 in) 
50% 
15 m (50 ft) / 15 mm (0.59 in) 
63% 
15 m (50 ft) / 10 mm (0.4 in) 
50% 
6 m (20 ft) / 5 mm (0.2 in) 
22 m (75 ft) 
37% 
15 m (50 ft) / 15 mm (0.59 in) 
80% 
15 m (50 ft) / 10 mm (0.4 in) 
63% 
15 m (50 ft) / 15 mm (0.59 in) 
22 m (75 ft) 
46% 
15 m (50 ft) 
50% 
15 m (50 ft) / 10 mm (0.4 in) 
22 m (75 ft) 
37% 
22 m (75 ft) 
22 m (75 ft) 
27% 
Chapter 2.  Determining Range and Clearance 
17
 
CPN 65756B 
Issue Date:  August 2003