User's Guide

User Guide for the Envoy Data Link
Document Number: UG-15000 Rev. A Page 32 of 173
• Intuitive formatting of aircrew input for altitude (flight level)
• An optional selection list (DUE TO)
• An optional input field that accepts either TIME or WAYPOINT—available only in a FANS connection
• VERIFY page showing message construction, optional free text appended, typical of DM
• Automated ground network acknowledgement
This sequence applies to both ATN B1 and FANS 1/A+.
Step 2. Message Composition
On ATC ALT REQ, enter ALTITUDE such as:
• 350 (100 to 700 in increments of
500ft)
• FL370
• 37 (30 to 95 in increments of 500ft)
• FL37
3700 (1000ft to 70000ft in increments of
500ft)
1000M to 21335M in increments of 1 meter
Press LSK L1 to upselect the input.
Optionally, press LSK R1 to select a reason from
the selection list:
• WEATHER
• PERFORMANCE
Optionally* enter step waypoint identifier or a time
(Zulu), and then press LSK L3 to upselect the
value, for example:
• BALIX (POS = Waypoint ID)
• 123 = (TIME=0123z)
* This option is only available in FANS
When all required data has been entered,
VERIFY action appears at LSK R6.
Press LSK R6 (VERIFY).
Step 1. Initial Page Access
On ATC MENU, press LSK L1 (REQUEST), and
then press LSK L1 (ALTITUDE).