Garmin GPS 400W, Installation Manual

Page: 110 / 212

Page 5-32 GNS 400W Series Installation Manual
Rev. G 190-00356-08
5.4.9 HTAWS Audio Check
NOTE
The audio panel should also be turned on for this test.
The HTAWS audio volume has an initial default of 60% of the maximum volume value. The volume
needs to be set so as to ensure that aural alerts are audible under all anticipated noise environmental
conditions.
1.
Select the configuration page labeled ‗TAWS AUDIO CONFIG 1‘.
2. Go to the PLAY MSG field. Rotate the small right knob to play the various TAWS audio
messages. The audio clips are the various system, caution, and warning messages.
3. Select and play a number of the audio messages. Adjust the volume so the messages are audible
under all anticipated noise environmental conditions.
Evaluate the audio messages for acceptable volume and intelligibility during both low and
high cockpit noise levels (idle descent at low speed and high power at Vmo).
Adjust the audio volume by moving the cursor to the VOLUME field and rotating small
right knob. Turn the knob to the right to increase the volume and to the left to decrease the
volume.