Open the Attached PDF for more information on TIS-B "TRFC" or "TIS-B" will be displayed depending on your IFD software version, but the indications have the exact same meaning. ![][1] ![][2] The No TIS-B (or TRFC) indicator is not an error message, just an indication that we are not receiving service to the...
When flying lower altitudes, you may see red or yellow hatched lines on the map that look like this: ![][1] This is called Terrain Awareness (TA) and is a graphical representation of aircraft height above surrounding terrain and obstacles, shown as colored overlays on the map. It is for general situational awar...