50G4 C
 The VHF-DSC self-test function (if available) usually performs the following:
A. Transmits a very weak DSC signal which is picked up by the Ch-70 receiver.
B. Transmits a weak voice signal which is picked up on Ch-16.
C. Makes a diagnostic test of the system without actually transmitting a signal.
D. Does a check sum of the memory chips.
