DBm

Allikas: Traadita Wiki by Jan & Co.

Detsbell milliwatt

dBm level Power Notes
80 dBm 100 kW Typical transmission power of FM radio station with 50 km range
60 dBm 1 kW = 1000 W Typical combined radiated RF power of microwave oven elements
40 dBm 10 W
36 dBm 4 W Typical maximum output power for a Citizens' band radio station (27 MHz) in many countries
33 dBm 2 W Maximum output from a UMTS/3G mobile phone (Power class 1 mobiles)

Maximum output from a GSM850/900 mobile phone

30 dBm 1 W = 1000 mW Typical RF leakage from a microwave oven - Maximum output power for DCS 1800 MHz mobile phone

Maximum output from a GSM1800/1900 mobile phone

27 dBm 500 mW Typical cellular phone transmission power

Maximum output from a UMTS/3G mobile phone (Power class 2 mobiles)

26 dBm 400 mW
25 dBm 316 mW
24 dBm 250 mW Maximum output from a UMTS/3G mobile phone (Power class 3 mobiles)
23 dBm 200 mW
22 dBm 160 mW
21 dBm 125 mW Maximum output from a UMTS/3G mobile phone (Power class 4 mobiles)
20 dBm 100 mW Bluetooth Class 1 radio, 100 m range (maximum output power from unlicensed FM transmitter).

Typical wireless router transmission power.

15 dBm 32 mW Typical WiFi transmission power in laptops.
10 dBm 10 mW
6 dBm 4.0 mW
5 dBm 3.2 mW
4 dBm 2.5 mW Bluetooth Class 2 radio, 10 m range
3 dBm 2.0 mW More precisely (to 8 decimal places) 1.9952623 mW
2 dBm 1.6 mW
1 dBm 1.3 mW
0 dBm 1.0 mW = 1000 µW Bluetooth standard (Class 3) radio, 1 m range
-1 dBm 794 µW
-3 dBm 501 µW
-5 dBm 316 µW
-10 dBm 100 µW Typical maximum received signal power (−10 to −30 dBm) of wireless network
-20 dBm 10 µW
-30 dBm 1.0 µW = 1000 nW
-40 dBm 100 nW
-50 dBm 10 nW
-60 dBm 1.0 nW = 1000 pW
-70 dBm 100 pW Typical range (−60 to −80 dBm) of wireless (802.11x) received signal power over a network
-80 dBm 10 pW
-111 dBm 0.008 pW = 8 fW Thermal noise floor for commercial GPS single channel signal bandwidth (2 MHz)
-127.5 dBm 0.178 fW = 178 aW Typical received signal power from a GPS satellite
-174 dBm 0.004 aW Thermal noise floor for 1 Hz bandwidth at room temperature (20C)
-192.5 dBm 0.00004 aW Thermal noise floor for 1 Hz bandwidth in outer space (4 kelvin)
-∞ dBm 0 W Zero power is not well-expressed in dBm (value is negative infinity)