An Azimuth Operator has acquired the RF test signal generated by the RF Test set located at the base of the Collimator Mast and locked on the signal in range. He is observing the Elevation and Azimuth angle error meters on the middle chassis on this door. He is in the process of adjusting each channel for both a plus & minus five (5) division sensitivity. An operator seated at the console is assisting by manually moving the antenna + & - five mils to coincide with adjustments being made on the error meters by the Azimuth operator.