In a communications system for an individual who has access to a vehicle-mounted two-way radio and a portable two-way radio which includes a speakermic having a speaker through which audible messages are transmitted for the individual to hear, there is provided a volume control arrangement associated with the speakermic through which the audio volume of the speakermic speaker can be adjusted. The system also includes a transmitter for transmitting a signal to the volume control arrangement that the individual is seated in the vehicle, and further includes a transmitter for transmitting a signal to the volume control arrangement that the mobile radio is energized. A receiver is associated with the volume control arrangement of the speakermic so that upon receipt of the signals transmitted from the two transmitters, the audio volume of the speaker of the speakermic is automatically lowered.


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    Title :

    Patrol Vehicle Communications System For Users Of Both Mobile And Portable Radios


    Contributors:

    Publication date :

    2018-01-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H03G CONTROL OF AMPLIFICATION , Verstärkungsregelung / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



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