This is related to your datalink weather. The boundary of the available datalink radar data is shown by an area with diagonal stripes. In normal operation, this boundary follows the outline of CONUS if US RDR is selected, or the extent of Canadian Radar if CAN RDR is selected. If, however, datalink radar is una…
IFD5xx/4xx Data Link Data Not Received This is an Advisory (Cyan) CAS message indicating that "X" amount of time has lapsed since a given weather product has been received. For example, let's look at SIGMETs. From the specifications: "The Broadcast SIGMETs product shall timeout if no data of this …