Audio-radar monitor recorder

The audio-radar monitor recorder is designed to continuously monitor and record 16 audio channels and one radar display on a single reel of magnetic tape. The tape is 2 in wide and moves at the speed of 15/16 ips. Each reel has a time capacitance in excess of 24 hours. The radar recording is accomplished by means of a quantizing system that separates the video signal into 14 low-frequency channels. The PPI radar display is recorded out to a 30 mile range. Range definition between 0 and 20 miles is 0.2 miles and between 20 and 30 miles is 0.33 miles. The azimuth resolution is 1°. During playback, a PPI display, complete with range marks, is shown on the face of a scope. Stationary magnetic-head and slow-speed tape assure trouble-free operation and long life.