Weather Product Age - Garmin G1000 NXi Pilot's Manual

HAZARD AVOIDANCE
9) Enter the access code provided by Garmin in the 'Access Code' Field.
10) Press the ENT Key. 'Register' is highlighted.
11) Press the ENT Key. The system contacts Garmin through the Iridium network. System registration is complete
when the Current Registration window displays the correct information for the Airframe, Tail Number, Airframe
Serial Number, and Iridium Serial Number.
12) When finished, push the FMS Knob to remove the 'Connext Registration' Window.

WEATHER PRODUCT AGE

Unlike real-time weather information collected directly from weather sensors on-board an aircraft, such as an
airborne lightning detection system, data link weather by contrast relies on service providers to collect, process,
and transmit weather information to the aircraft. This information can come from a variety of sources such as
government agencies. Due to the time it takes to collect, process, and distribute data link weather information,
it is imperative for pilots to understand that data link weather information is not real-time information and may
not accurately depict the current conditions.
For each data link weather product which can be displayed as a map overlay, such as METAR flags, the system
can also show a weather product age. This age represents the elapsed time, in minutes, since the weather service
provider compiled the weather product and the current time. It does not represent the age of the information
contained within the weather product itself. For example, a single mosaic of radar precipitation is comprised
data from multiple radar sites providing data at differing scan rates or intervals. The weather service provider
periodically compiles this data to create a single composite image, and assigns one time to this image which
becomes the basis of the product age. The service provider then makes this weather product available for data
link transmission at the next scheduled update time. The actual age of the weather data contained within the
mosaic is therefore older than its weather product age and should never be considered current.
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Figure 6-3 Enter Access Code
Garmin G1000 NXi Pilot's Guide for the Cessna NAV III 190-02177-02 Rev. A