077C D
 What can be the visual observation of a condition whereby it may be possible to initiate a reliable TELEX transmission but a voice transmission may not be possible?
a) An indication on a meter or on the display terminal of high transmit power.
b) An indication of a very high antenna elevation on the display terminal screen.
c) An indication that the antenna has reached its maximum travel in one direction.
d) An indication on a meter or on the terminal of low receiver signal strength.
