From the trial. It was found that the system's sensitivity (sensitivity) to indicate the ability to receive the signal of radio communication, which is when we enter the RF signal (from a signal gennerater) will make a noise reduction to 20 db reduction can be considered as a reference point (20 db Quieting sensitivity Noise), so that the radio receiver is 20 db, there is precious little NQ sensitivity greater than 20 db engine dash radio with negative NQ very much.
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