As per my knowledge, AT Command and TNP1 protocols are used in TETRA
protocols used for network device.
Communication rules are called protocols.
Protocol analyzer
difficult to say
micro wave is used in cell phone communication.
The ZigBee module is a collection of high level protocols used for communication that can be used to create personal area networks from digital radios.
There are 5 types pf protocols used in the computer network.
They are; mobile phones are no more dangerous than a radio station.
There are many ways to communicate between networks. The rules for doing so are called protocols, and there are many known protocols. Some are historical in nature (meaning they have been around a long time) and some are newer ones developed in the last few years. Protocols describe how to communicate and when to communicate. They may be specific to a means of communication (i.e. web traffic, email traffic) or they may be more general (TCP/IP - covering many protocols). Deciding on which protocol to communicate with other networks is based on how the networks communicate currently and what kind of traffic will be transferred between the two. A protocol is designed so that there are common rules regarding communication, so certain protocols will be used to be common between networks. TCP/IP is an example of a very common, widely-used communication protocol.
AMPS
the frequency used in mobile communication should be greater then 30mhz so cannot be reflected by the ionosphere thats why we are using a frequency of range less ghz so called "radio waves"
mobile means portable, phone is used to communicate. so the mobile phone is giving us the meaning that the communication device which is can be portable.