| 摘要 |
PURPOSE: A device for diagnosing an RF block using a receiving AGC function is provided to confirm whether an accumulated value is a maximum value by reading the accumulated value from a CPU or an alarming LED is turned on, thereby deciding whether a signal is normally inputted to an input terminal and reducing time for connecting test equipment. CONSTITUTION: An RF unit(10) processes a wireless signal received through an antenna. An amplifier(15) amplifies the signal of the RF unit(10) according to an amplifying command of an amplifying gain controller(50), and outputs the amplified signal. An A/D converter(20) converts an analog wireless signal outputted from the amplifier(15) into a digital signal. An RF diagnosis unit(40) detects power of a digital signal converted in the A/D converter(20), and diagnoses power degrees of an RF signal. The amplifying gain controller(50) controls an amplifying gain according to a diagnosed result, and transmits the amplifying command for the RF signal to the amplifier(15).
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