TM 55-6930-214-10
(g) The flashing light is terminated by:
1 The trainee releasing the press-to-talk switch.
2 The instructor pressing the flashing XMIT switchlight.
(h) When the instructor presses the flashing XMIT switchlight, it becomes
steadily lit, and mic audio is gated to the proper simulated radio receiver.
(i) Subsequent press-to-talk actuations by the trainee on that particular
radio set do not flash the switchlight while it is selected.
(j) Radio communication is terminated when the instructor:
1 Presses the radio set XMIT switchlight.
2 Selects another interlocked switchlight.
e. Intercommunications System (ICS) Communications.
The following criteria
apply:
(1) In integrated mode:
( a ) Instructors, observers, and trainees can all communicate via the inter-
communication system (ICS), provided the sets are operational. Trainee sets are
powered separately.
(b) Instructors and observers enter the system by pressing the ICS switch-
lights.
(c) When either ICS set is operational, the selected switchlight is lit, and
caller mic audio is gated to the simulated ICS whenever the transmit switch is
actuated.
(d) When a trainee transmits on an operational ICS set, the ICS switchlight
on both instructor and both observer COMM panels flash. Trainee-to-instructor call
audio is always enabled.
(e) The flashing light is terminated by:
1 The trainee releasing the press-to-talk switch.
2 An instructor or an observer pressing the flashing ICS switchlight.
(f) The instructor or observer who pressed the flashing ICS switchlight sees
the light become steady, and mic audio is gated to the simulated ICS.
(g) Subsequent press-to-talk actuations by the trainee while transmitting on
the ICS do not cause flashing of the ICS switchlight on any IOS or observer COMM
panel.
(h) After a call has been answered, the ICS switchlights at the other COMM
panels neither flash nor light. ICS audio is enabled only for the instructor or
observer who has selected ICS.
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