User's Manual

UniLink UL-800/801 FANS
SCN 30.X
Operator’s Manual
78 23-20-06.02
December 2011
COMM STATUS
Menu Navigation: UNILINK MENU > COMM STATUS
The COMM STATUS page displays the current configured status of
available communication media links.
MODE
The MODE field indicates the manner in which ACARS will be used.
• MODE A = POA (Plain Old ACARS)
• MODE B = AOA (AVLC Over ACARS)
Based on the aircraft installation and configuration, all three media
statuses may or may not display. If not configured, the media title will
not display and the position on the page will be empty. The possible
statuses include:
VHF Media Status Reason
COMM / IDLE Communications have been established
with the ground and datalink messages
can be transmitted over VHF. No data is
currently being transmitted.
COMM / SENDING A message is currently in the process of
being transmitted over VHF and UniLink
is waiting for acknowledgement from the
ground.
NOCOMM / NO FREQ UniLink has not selected a frequency for
tuning due to invalid FMS lat/long or no
radio type
NOCOMM / SCANNING UniLink is automatically selecting a
frequency for tuning in current region
with enabled DSP.