Raytac Corporation

A BT4.1 & BT4.2 module maker based on Nordic nRF51 & nRF52 solution 

(nRF51822 & nRF51422 & nRF52832 & nRF51802)

Tel: +886.2.3234.0208

What is dBM?

From Spec sheet, we can find the output power always stated as dBM.

For example:

Nordic nRF52832

Transmitting power (+4dBM~-20dBM) / Receiving Sensitivity (-96dBM)

dBm is the unit for radiowave, it is a way to express the comparison between the reference signal value

The reference value is 0dBM at 1mW, the unit represented as shown below

1/10000 times = -40 dBm

1/1000 times = -30 dBm

1/100 times = -20 dBm

1/10 times = -10 dBm

1mW =     0 dbm ← Reference Signal Value

10 times  =  10 dBm

100 times  =  20 dBm

1000 times  =  30 dBm

About the Author Raytac Corporation

Raytac Corporation was established in year 2004 by a group of engineer's expertise in the Radio Frequency (RF) technology and a team of experienced multinational senior marketing and production personnel. The core technology know-how in RF Module, BLE Module, Manufacturing of the wireless electronic products, Raytac has committed to the customers a more convenient wireless choice. Our mission, "Making our life more convenient through innovation and application of wireless technology"; we will constantly evolve and adapt from our RF technology, to provide all our customers the best solutions in the wireless world. And, will devote ourselves to be one of the wireless technology leader in the world and have more contribution to the human beings.

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