Garmin GTN 750 Pilot's Guide - Page 406

Foreword 19.4 Glove Qualification Procedure Getting This procedure is used to qualify a specific glove for use with the GTN system Started by guiding the user through a variety of tasks that use the touchscreen. Due to Audio & differences in finger size, glove size, and touchscreens between the 6XX or 7XX Xpdr Ctrl unit, the qualification granted by this procedure is specific to the pilot/glove and Com/Nav 6XX or 7XX combination. GTN 7XX and 6XX units must be evaluated separately. The GTN touchscreen uses capacitive touch technology to sense the proximity FPL of skin to the display. A glove increases the distance between skin and the display glass and may reduce the ability of the GTN to detect touches. Therefore, when Direct-To selecting a glove for use with the GTN, thinner gloves tend to work better than thicker gloves. Leather gloves and gloves designed to work specifically with Proc capacitive touchscreen devices are often found to be acceptable. Additionally, Charts altering your touch technique to use the pad of your finger to touch the unit rather than the tip will increase the touchscreen sensitivity while using gloves. Wpt Info This qualification must be completed on the ground. Performing this procedure in flight is not authorized. Table 19-1 contains tasks that are required Map to qualify a glove. Table 19-2 contains tasks that are not required to qualify a glove, but may limit the manner in which some functions are accessed while a Traffic glove is worn. Terrain 1. Sit in the pilot's seat. 2. Start the GTN in Demo mode by pressing and holding the Direct To key during Weather power up. Nearest 3. Perform the tasks listed in Table 19-1 and Table 19-2 with an ungloved hand. You do not need to record any results for this step. Music 4. Perform the tasks listed in Table 19-1 and Table 19-2 with a gloved hand. For each task, determine whether the operation is the same or worse as it was Utilities without the glove. Record the results in Table 19-1 and Table 19-2. Items that System may cause the operation to be worse include, but are not limited to: a. Multiple attempts to select a key Messages b. Unintentional selection of adjacent keys c. Excessive force on the touchscreen to select a key Symbols 5. If all applicable tasks in Table 19-1 respond in the same way with and without Appendix a glove then the glove used to complete these tasks may be used by the pilot Index 19-16 Garmin GTN 725/750 Pilot's Guide 190-01007-03 Rev. B