Designed with low cost of procurement and operation in mind, the Mark VI contains a regional terrain/airport/obstacle database and does not include wind shear detection, as it is not required for turboprop aircraft.

The EGPWS uses aircraft inputs including geographic position, attitude, altitude, airspeed, and glideslope deviation. These are used with internal terrain, obstacles, and airport databases to predict a potential conflict between the aircraft flight path and terrain or an obstacle. A terrain or obstacle conflict results in the EGPWS providing a visual and audio caution or warning alert. Additionally, the EGPWS provides alerts for excessive glideslope deviation, too low with flaps or gear not in landing configuration, and optionally provides bank angle and altitude callouts based on system program pin selection. Detection of severe windshear conditions is also provided for selected aircraft types when enabled.  For electronic flight information system (EFIS) support, please consider the Mark VIII alternative.

• The geometric altitude algorithm overcomes barometric altimetry limitations, like cold weather operations.
• Honeywell’s peaks display depicts the highest and lowest elevation terrain within the display range at any altitude, when most TAWS displays would be blank, which can be useful in the event of an unplanned descent.
• The runway field clearance floor (RFCF) feature provides protection against inadvertent landings below airport runway thresholds at airports that are much higher than surrounding terrain.
• Using envelope modulation, Mark VI reduces the rate of nuisance alarms to increase pilot confidence.
• The Mark VI has auto pop-up to change from radar to terrain display in the event of a terrain alert, reducing pilot workload during this critical time.
• The Mark VI features altitude callouts of height above terrain or field elevation during final approach.