User's Manual

UniLink UL-800/801 FANS
SCN 30.X
Operator’s Manual
58 23-20-06.02
December 2011
OFFSET
Menu Navigation: UNILINK MENU > ATC > REQUEST > OFFSET
An offset request involves specifying to ATC a direction and a lateral
distance (offset) from the desired track (DTK). The ATC REQ
OFFSET page, accessed via LSK [3R] on the ATC REQUEST page,
is used to make an offset request.
To make an Offset request:
1. With OFFSET active, enter an offset distance and press
[ENTER].
NOTE: Entered distance (in NM) must be preceded by an “L” or “R” to
indicate offset side from track. Offset distances must be
between 1 and 128 NM (the UASC FMS has a maximum of
99.9 NM).
NOTE: It is recommended that offsets beyond 25 NM of the original
route be avoided. Greater offsets may cause ETAs in ADS-C
reports to exceed the three-minute error tolerance
requirement.
2. Press AT, LSK [2L] (optional). The ATC REQUEST AT page will
display.
3. Press the appropriate LSK to enter information for FIX, NAVAID,
AIRPORT, TIME (ZULU), LAT/LON, or Place/Bearing/Distance
(P/B/D). The display will return to the ATC REQ OFFSET page
showing the entered information at the AT option.
4. Press DUE TO, LSK [1R] and toggle between WEATHER, A/C
PERF, or NONE (NONE is the default).
NOTE: If no valid entry is made at the AT option and the value of
DUE TO is WEATHER, the ATC REVIEW page will indicate