Designed for two-way communication in acoustic noise conditions of up to 133 dB in armoured vehicles, special equipment and special vehicles, as well as for protection against shock and climatic factors.
Suitable for operation at temperatures from minus 50 ºС to 55 ºС and high relative humidity to 100 % at temperature of 35 ºС.
· available types:
summer type – МЛ, ВЛ
winter type – МЗ, ВЗ
· Built-in ГВШ-Б-10Э headset with active noise control system is used in earphone helmet type МЛ and МЗ.
· Built-in ГВШ-Б-10В headset with capability to switch microphone and laryngophone transmission paths is used in earphone helmets type ВЛ and ВЗ
· available in three standard sizes
· headset top colour - black
| Operating frequency range, Hz | 150-7000 |
| The module of the input resistance of the receiving path at a frequency of 1000 Hz, Ohm | 600 ± 120 |
| Output voltage of the transmission path, not less than, mV | 1,25-1,55 |
| Noise reduction coefficient at reception in the frequency range 100 - 400 Hz with the active noise reduction system turned off, not less than, dB | 12 |
| Noise reduction coefficient at reception in the frequency range 100 - 400 Hz with the active noise reduction system turned on, not less than, dB | 25 |
| Supply voltage of the active noise reduction system, V | 12 ± 1,2 |
| Weight, no more | ТШ 4 типа МЛ, ВЛ - 1080, ТШ 4 типа МЗ, ВЗ - 1160 г |
