Dynon Avionics SkyView Pilots Users Guide - Manual (Page 160)

SV-MAP-270 Navigation Mapping Software
7-70 SkyView Pilot’s User Guide - Revision S
NEXRAD Data Coverage
In some circumstances, geographic areas may not have NEXRAD imagery available. This may be
the case if:

Data is not available for the area because there is no NEXRAD coverage in the locale. This
can be observed in the areas surrounding the US in Figure 144 above.

Data blocks not received for an area due to radio signal obscuration, interference, or other
radio phenomena:
Figure 146 - Missing NEXAD Data Blocks

Data has not yet been received for an area for which there is available coverage, due to the
time it takes for the ADS-B system to transmit information. For example, the following
figure depicts what the continental US would look like when higher resolution regional
NEXRAD weather information has been received, but the lower resolution continental US
(CONUS) NEXRAD imagery has not yet been received:
Figure 147 - Regional NEXRAD Only / No CONUS
In all of these cases, areas for which no data is available will depicted in purple by SkyView.
ADS-B Receiver Status / Data Age
A status data block in the lower left corner of the map page contains information about both
the ADS-B Receiver’s state as well as age of the weather data that was last received by the ADS-
B receiver: