A wafer type point-contact Josephson junction to be inserted into the waveguide WRJ-900 after adjustment at room temperature has been developed, and used for the detection of 102 and 200 GHz waves. The voltage responsivity of this detector was 4.8104 V/W at 102 GHz and 1.0104 V/W at 200 GHz. For the frequency response of the junction, Shapiro steps up to about 2 THz were observed.