Section 7
Columbia 400 (LC41-550FG)
Description of the Airplane and Systems
Initial Issue of Manual: November 10, 2004
RC050002
Latest Revision Level/Date: A/12-01-2004
7-101
6.
Viewing Multilink Data
a.
NEXRAD Data
If NEXRAD is being received from both Narrowcast and Broadcast, there will be a
separate NEXRAD overlay available for each on the Map page. Pressing WX OVLY will
cycle through the available NEXRAD sources.
As an example, consider a flight from Caribou, ME to Pellston, MI. Even though this
flight originated and ended within CONUS, a large portion of the route is over Canada
and was outside the coverage area of Broadcast Datalink.
The first illustration below shows the Map page seen on a Broadcast Datalink-only unit
for this flight, and the next illustration below shows the same page on a Multilinkenabled
unit with the Narrowcast NEXRAD overlay selected. Note the difference in the hatched
area of both images, which clearly shows the expanded coverage area of Narrowcast. In
this case, some very significant weather sat just outside the Broadcast NEXRAD area.
With Multilink, NEXRAD for your flight plan coverage area can extend far beyond the
limits of Broadcast Datalink.
All weather data other than NEXRAD (i.e. Text and Graphical METARs, AIRMETs,
SIGMETs and TFRs) are depicted as usual, whether received from Broadcast or from
Narrowcast. No specific action is required to choose between Datalink systems for this
data.