Try Odoo
Microphone Weak or Inoperative
1) Position the 'Talk' side of the microphone (indicated by a solid white dot just outside of the windscreen) is pointed directly toward your mouth. The microphone should be close enough that your lips will touch the windscreen when you purse them, but not so close that they touch when you talk.
2) Verify the Microphone Routing Switch (located on the face of the Aviation Application Cable) is in the Aircraft position.
3) Verify the Microphone Gain (the dial located on the side of the Aviation Application Cable) is turned up to 8 or 9.
4) HARMONY Pro Only (2016-2021) - Verify the switch on the back of the inline controller, If equipped, (the pill shaped housing on the cord about 6” (12cm) from the headphones) is set to the Phone or | position.
Additional Steps:
1) Gently move the cable in different directions near any junction with a plug or housing. If the microphone cuts in and out with movement then there is a fault and the component with the fault will need to be replaced.
2) Cycle the switch in step 4 about a dozen times and return it to the 'Phone' or 'O' position. This should alleviate any potential contact issue in the switch mechanism.
If you need further assistance, feel free to call us at 719-531-7226.
You can also submit a helpdesk ticket on our website at the link below;