Abstract: A hand-carried and self-contained receiver and indicator for producing a signal when the presence of pulsed (or pulsed doppler) radar operation is detected, either in a broad band containing all the common radar pulse frequencies, or in a limited band whereby those outside the band are rejected. A simple biconical horn antenna is provided at one end of a very short coaxial line leading to a broadband detector. From the detector, a flexible transmission line connects to the remaining receiver circuitry containing, in one mode of operation, an amplifier, a limiter, a retriggerable multivibrator and an audible beep type of tone generator driving an earphone. In another mode of operation, the retriggerable multivibrator is replaced by a dual tuned circuit having a substantially restricted bandwidth for passing only a desired pulse frequency signal.