User's Manual

MASTR III Repeater Calibration Procedure 5/16/2011
Raytheon JPS Communications, Inc. 2-5
8/22/2011
2.1.3.3 Change the test tone selection on PCCT to Analog Short Square Wave
(100Hz) and verify the demodulated audio oscilloscope displays a good
approximation of a square wave with generally flat high and low levels
(Figure 2-4). A poor square wave indicates the radio needs to be aligned
with the factory service software to achieve better DC Balance.
Figure 2-4 Test Set Oscilloscope: Short Square Wave