Android defines two signal units: DBM (decibels 1 MW) and asu (single signal unit). The relationship between them is: dBm? =- 1 13+2*asu, which is the only signal unit defined by google for android phones.

The asu of the mobile phone should be 6.5.

ASU is also an analog signal. Analog signal refers to the signal whose mathematical form is a continuous function in time domain. Corresponding to analog signals are digital signals, which take discrete logical values, while the former can get continuous values.

The concept of analog signal is often used in the field of electricity, but it is sometimes used in classical mechanics, aerodynamics, hydraulics and other disciplines.

Extended data

Decibel milliwatt (dBm, full name is "decibel relative to one milliwatt") is an absolute value, which refers to power, but it is only a relative value different from dB.

The conversion formula between arbitrary power P(mW) and xdBm is as follows:

and

For example, 1 MW (1 mW) is 0 dBm when converted into decibels. 1 watt (1 watt) is converted into decibel milliwatt, which is 30dBm.

ASU application

ASU embedded media server is used to embed G3 media gateway of NTX (Unified Communication System). It is the backbone of the whole system and is responsible for handling all voice calls and unified communication applications in the system.

Occupy two time slots and insert broadband time slots S6 and S7 of NTX frame; Provide WAN port and LAN port, realize the connection with WAN router or Ethernet LAN, and support hot plug function.

Baidu encyclopedia -dBm

Baidu encyclopedia -ASU