Proxim TSUNAMI CPN 65756B 用户手册

An EIRP limit is the maximum RF energy that can be transmitted, as measured at the transmitting antenna, 

and is usually determined by government regulations. 

54 

- 69 dBm 

21 

108 

- 66 dBm 

21 

48 

- 73 dBm 

20 

96 

- 70 dBm 

20 

36 

- 77 dBm 

16 

72 

- 74 dBm 

16 

24 

- 81 dBm 

12 

48 

- 78 dBm 

12 

18 

- 84 dBm 

9 

36 

- 81 dBm 

9 

12 

- 86 dBm 

7 

24 

- 83 dBm 

7 

9 

- 87 dBm 

5 

18 

- 84 dBm 

5 

6 

- 88 dBm 

4 

12 

- 85 dBm 

4 

* allowed in FCC regulatory domain only 
 

The first Fresnel zone size is a list; Proxim’s recommendation is to keep at least 60-70% of this zone free.  If 

the clearance is lower than this percentage, the link budget and achieved fade margin are affected.  

Clearances more than 100% of the Fresnel zone can cause reflections that are 180 degrees out of phase 

and can cancel out the signal. The Fresnel zone works in both the horizontal and vertical paths. 

5.25 – 5.35 GHz 

52, 56, 60 14.5 

15.5 

17.5* 

18.5* 

5.25 – 5.35 GHz 

64 

12.5 12.5 12.5 12.5 

5.745 – 5.850 GHz 

149, 153 

13.5 15.5 17.5 18.5 

5.745 – 5.850 GHz 

157, 161 

13.5 15.5 17.5 17.5 

5.745 – 5.850 GHz 

165 

12.5 15.5 17.5 17.5 

* 17.4dBm is the FCC certified peak output power of Tsunami MP.11a product at 5.25-5.35GHz band 
** 20.8dBm is the FCC certified peak output power of Tsunami MP.11a product at 5.725-5.850 GHz band 

These power levels are the levels at the antenna connector of the MP.11, so where the MP.11 has a higher 

output power than certified, the TPC needs to be used to reduce the output power. 

 

23