research in analogue amplifier activated by radio frequency

Discussion in 'Homework Help' started by immanuelg60, Feb 28, 2013.

  1. immanuelg60

    Thread Starter New Member

    Feb 28, 2013
    1
    0
    Specifications
    Handheld
    Wall mounted (similar size as smoke detector)
    cost-effective public warning and communication system pre and post a civil disaster
    Activated by radio
    Radio signal detection

    i really need help with this
    thank you
     
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