Intermittent audio from product | Bose A30 Aviation Headset

Having the Bluetooth device in a back pocket, bag or a backpack could cause loss of connection.

Please Note: The human body can act as a source of interference for Bluetooth and radio signals. Bluetooth sources positioned immediately next to a person (in a pocket, for example) may result in intermittent or loss of connection. For best results have the Bluetooth source closer to the product (i.e. in a front pocket) to reduce the potential for “body-block� interference.

To improve "body-block" interference, we recommend updating your earbuds to software version1.3.x or later. See Updating the software or firmware of your product for additional help.
 

When in multipoint, a secondary Bluetooth device could possibly receive a text/email notification and try to broadcast audio to your product. This could interrupt the primary Bluetooth connection/audio stream which effects Bluetooth bandwidth, causing intermittent audio or sporadic Bluetooth connections.

To eliminate any interruptions, we recommend turning off Bluetooth on your secondary device which is connected to your Bose product.

On a computer, visit btu.bose.com and follow the instructions to ensure your product has the latest features and enhancements. See Checking the software or firmware version and Updating the software or firmware of your product.

Set the control module's mode switch to the bottom position for OFF (Intercom Only) mode. If there is no issue in Intercom Only mode, but the issue persists using MUTE (Intercom Prioritized) mode, there could be sound getting into the microphone.

In MUTE mode, any audio received from the intercom always takes priority. For example, if the microphone brushes up against something or is breathed into, that sound comes from the intercom and will take priority causing any non-intercom audio to mute. Adjust the squelch setting or reposition the mic/cable to avoid unwanted noise entering the mic.

Put the audio selector switch on the headset control module in either the middle or top position. (Be sure it is not in the down / Intercom Only position.) Then, disconnect the headset from the panel and connect an audio device to the 3.5 mm aux input on the headset control module. If you have a headset with Bluetooth®, you can connect a Bluetooth device instead: If the issue still occurs with the aux device, there is an issue with the headset; if the issue is not present with the aux device, the issue is related to the panel settings or connections.

Electronics might need to be reset from time-to-time—much like rebooting a computer. Power off the device, then power it back on and try again.

Try replacing the cables that connect your product. If no issue is heard with new cables, the first set of cables is the issue.

If your Bose product can connect to another device, Bluetooth functionality is working. In cases like this, the issue could be with the first device or its settings.

If available, connect a different headset to the aircraft to determine if the issue is related to the aircraft panel or its settings.

Non-TSO equipment, worn jacks/loose connections, or incorrectly wired jacks (i.e. reversed stereo or mic / ground wires) in the aircraft can cause issues. If available, try connecting the headset to another jack in the aircraft or to jacks in a separate aircraft. If the headset works fine when connected elsewhere, the panel jack or wiring to the jack is the issue.

Some wireless devices can cause interference with a Bluetooth signal. 
Common examples include:-

• 2.4 GHz router
• cordless phone
• wireless speaker adapters
• home security motion sensors
• fluorescent lights
• microwaves
• wireless mice and keyboards

If there are such devices, disconnect one at a time and check if the issue improves. If so, consider relocating your product or the device.