CXtec NEW COMPATIBLE 2.2 DBI RUBBER DUCK ANTENNA WITH RPTNC FEMALE Guia De Especificaciones
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Table 1. Decibel Values and Corresponding Factors
Increase
Factor
Decrease
Factor
0 dB
1 x (same)
0 dB
1 x (same)
1 dB
1.25 x
-1 dB
0.8 x
3 dB
2 x
-3 dB
0.5 x
6 dB
4 x
-6 dB
0.25 x
10 dB
10 x
-10 dB
0.10 x
12 dB
16 x
-12 dB
0.06 x
20 dB
100 x
-20 dB
0.01 x
30 dB
1000 x
-30 dB
0.001 x
40 dB
10,000 x
-40 dB
0.0001 x
POWER RATINGS
WLAN equipment is usually specified in decibels compared to known values. Transmit Power and Receive Sensitivity are specified in “dBm,” where
“m” means 1 milliWatt (mW). So, 0 dBm is equal to 1 mW; 3 dBm is equal to 2 mW; 6 dBm is equal to 4 mW, and so on. For example, a Cisco
Aironet 350 Series Access Point at 100 mW transmit power is equal to 20 dBm. dBw is occasionally used for the same purpose, but as a comparison
against 1 watt (1000 mW). Common mW values to dBm values are shown in Table 2.
Table 2. Common mW Values to dBm Values
dBm
mW
dBm
mW
0 dBm
1 mW
0 dBm
1 mW
1 dBm
1.25 mW
-1 dBm
0.8 mW
3 dBm
2 mW
-3 dBm
0.5 mW
6 dBm
4 mW
-6 dBm
0.25 mW
7 dBm
5 mW
-7 dBm
0.20 mW
10 dBm
10 mW
-10 dBm
0.10 mW
12 dBm
16 mW
-12 dBm
0.06 mW
13 dBm
20 mW
-13 dBm
0.05 mW
15 dBm
32 mW
-15 dBm
0.03 mW
17 dBm
50 mW
-17 dBm
0.02 mw
20 dBm
100 mW
-20 dBm
0.01 mW