i know the teacher in the field of modem in mobile two way radio

摘要

the content of the TRS rf modem to the field of wireless terminal in a wireless terminal, and a specified frequency in the regicide. the wireless signal transceiver and the antenna, TRS terminal function or the function of the radio to the location of the temple is not, and i'm not. it is a voice signal or a signal message processing to perform TRS rf modem and i, not through the transmitting and receiving of the signal is a voice signal processing module to perform a radio transmitter and TRS rf modem's operation, i do not control for transmitting and receiving the audio signal to be ud1b5ud574 or the the information of the treatment to control the radio module, the motion control, and i can't be by transmitting and receiving the audio signal of the transmitting and receiving control.TRS terminal function in the normal operation state of the repeater is not automatic, the radio function of the control signal in order to produce the output of the switch section is controlled and the operation of the user according to a key signal generated from the output of the control is the key input part, the control part of the control state of the wireless terminal according to the use of the wireless terminal, and call state information of the display device to perform display control of the control part, and according to the TRS rf modem and the radio module in a voice signal processing the amplification and the loudspeaker through the audio output from the microphone, and the electric signal converted into the voice signal of the user to increase, the output control of the audio input part and wireless terminal used on various parts of the power supply power department of.;therefore, the design is a wireless terminal to a communication function to perform, and the occurrence of natural disasters or accidents, use mobile phone and TRS system fault occurrence in an emergency, in the short distance wireless communication to perform, low-cost the cost of the wireless terminal to use effect, and can provide.