Abstract: The present application provides data transmitting and receiving methods in a narrow-band communication system, a two-way radio and a storage medium. The general idea of the present application is as follows: the two-way radio at the transmitting end firstly transmits a pilot signal, which activates the two-way radio at the receiving end into an operating state; the two-way radio at the transmitting end, after transmitting the pilot signal, transmits data to be transmitted to the two-way radio at the receiving end; the two-way radio at the receiving end, according to the pilot signal, switches the two-way radio at the receiving end into the operating state, and in its operating state receives data transmitted by the two-way radio at the transmitting end. This ensures that the two-way radio at the receiving end may receive data from the two-way radio at the transmitting end in real time, thereby improving the accuracy of data transmitted by the two-way radio at the transmitting end.

Abstract: The present application provides data transmitting and receiving methods in a narrow-band communication system, a two-way radio and a storage medium. The general idea of the present application is as follows: the two-way radio at the transmitting end firstly transmits a pilot signal, which activates the two-way radio at the receiving end into an operating state; the two-way radio at the transmitting end, after transmitting the pilot signal, transmits data to be transmitted to the two-way radio at the receiving end; the two-way radio at the receiving end, according to the pilot signal, switches the two-way radio at the receiving end into the operating state, and in its operating state receives data transmitted by the two-way radio at the transmitting end. This ensures that the two-way radio at the receiving end may receive data from the two-way radio at the transmitting end in real time, thereby improving the accuracy of data transmitted by the two-way radio at the transmitting end.

Abstract: An interface system for communication devices comprises a radio having a through-hole opening from a front surface to a back surface, the through-hole forming a coaxial connector shaped interface for coupling to an accessory. The coaxial connector shaped interface allows for a plurality of different interchangeable electronic accessories to interface to the radio.

Abstract: A loudspeaker audio accessory provides and non-cable interface to a portable radio. The accessory can operate in conjunction with the radio or as a standalone device. An accessory loudspeaker is contained within the accessory housing, the accessory loudspeaker being positioned at a tilted angle within the housing to direct audio upwards towards audio porting located on a top surface of the accessory housing. The accessory provides a plurality of operational modes, the first mode of operation being a stand-alone mode generating an emergency alert audio tone via the loudspeaker in response to a switch being enabled; and the second mode of operation provides boosted audio via the accessory loudspeaker when the accessory is coupled to a radio. The accessory can also operate in conjunction with the radio via a short range link to selectively emergency signals and boosted audio.

Abstract: A loudspeaker audio accessory provides and non-cable interface to a portable radio. The accessory can operate in conjunction with the radio or as a standalone device. An accessory loudspeaker is contained within the accessory housing, the accessory loudspeaker being positioned at a tilted angle within the housing to direct audio upwards towards audio porting located on a top surface of the accessory housing. The accessory provides a plurality of operational modes, the first mode of operation being a stand-alone mode generating an emergency alert audio tone via the loudspeaker in response to a switch being enabled; and the second mode of operation provides boosted audio via the accessory loudspeaker when the accessory is coupled to a radio. The accessory can also operate in conjunction with the radio via a short range link to selectively emergency signals and boosted audio.

Abstract: An interface system for communication devices comprises a radio having a through-hole opening from a front surface to a back surface, the through-hole forming a coaxial connector shaped interface for coupling to an accessory. The coaxial connector shaped interface allows for a plurality of different interchangeable electronic accessories to interface to the radio.