Operational Advisories
As with any complex electronic device, it is possible for this headset to experience a failure during operation. Such a failure may include loud tones, distortion and loss of communications signal in the headset when used in the active or “on” position. The system is “on” when the rocker switch is “up”.
Note: This failure could prevent continued use of the headset in the “on” position.
These loud tones and the related loss of communications can be elimi- nated for the duration of the flight simply by switching the headset off. (The system is off when the rocker switch is “down.”) With the switch off, the headset continues to function in the passive mode, maintaining full communication capabilities.
We strongly recommend that as a responsible pilot, you ensure you can hear and recognize typical aircraft sounds while you are using the headset. Limit the volume of your headset to safe levels so it does not interfere with your ability to hear informational sounds, such as those emitted by warning alarms; i.e., stall warning, gear up.
Avoid setting the volume controls at high levels that may affect your hearing during extended periods of headset use.
The Bose® Aviation Headset Series II has been tested and found to comply with limits for a class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and the receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio/television technician for help.
This apparatus does not exceed the class B limits for radio noise emis- sions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. It also complies with Canadian
2
