How to work with dBm

 

   How to calkulate L= dB/m into P [mW]

 

P[mW] = 10 ^ (dB/m / 10)

            = 10 ^ (31dB/m /10)

            = 1258.9 mW RF

 

     How to calkulate P into L=dB/m 

 

L[dB/m] = 10 *  log  ( P[mW])

              =  10 * log  (1258.9mW)    

              =  30.999 dB/m

 

 

Power [dBm] Power [mW] Fix @ 2 Power [dBm] Power [mW] Fix @ 2
1 ~ 1,26 23 200,00
2 ~ 1,58 24 ~ 251,19
3 ~ 2,00 25 ~ 316,23
4 ~ 2,51 26 ~ 398,11
5 ~ 3,16 27 ~ 501,19
6 ~ 3,98 28 ~ 630,96
7 ~ 5,01 29 ~ 794,33
8 ~ 6,31 30 1000,00
9 ~ 7,94 31 ~ 1258,93
10  10,00 32 ~ 1584,89
11 ~ 12,59 33 2000,00
12 ~ 15,85 34 ~ 2511,89
13 ~ 19,95 35 ~ 3162,28
14 ~ 25,12 36 4000,00
15 ~ 31,63 37 5011,87
16 ~ 39,91 38 6309,57
17 ~ 50,12 39 8000,00
18 ~ 63,10 40 10000,00
19 ~ 79,43 50 100000,00
20  100,00 60 1000000,00
21 ~ 125,89 70 10000000,00
22 ~ 158,49 80 100000000,00