CSM 3500 BN HV earmuff for helicopter operations
The CSM 3500 BN HV first-aid earmuffs are noise-cancelling earmuffs with a microphone that can be fitted to a protective helmet (make and type to be specified).
It will enable quality communications to be established in both quiet and noisy environments.
The earmuff’s numerous interfaces will enable it to be used in all helicopter rescue operations.
The CSM 3500 helmet is equipped with a low-level, high-impedance helicopter interface.
The CSM 3500 helmet will enable :
- in flight, to communicate with the helicopter’s on-board personnel via the on-board intercom network
- during hoisting and rescue operations, to communicate with other rescuers via the PMR radio network
Technical data
Coiled connection cable with NATO male/female plugs for connecting helmets to helicopter TB.
HN / BN interface box for connecting the helmet to high-level helicopter T.B. networks.
ARVA interface for receiving ARVA signals in noise-cancelling helmets during mountain rescue operations.
Socket for connecting a link cable to a mobile phone
High acoustic insulation / high visibility earmuffs
Noise-cancelling dynamic microphone for use in noisy environments
2 pairs of earphones: 1 for TB helicopter / 1 for PMR radio