117. THL-5 Hard Aviation Helmet - Cenzin
117. THL-5 Hard Aviation Helmet - Cenzin
117. THL-5 Hard Aviation Helmet - Cenzin
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<strong>THL</strong>-5 <strong>Hard</strong> <strong>Aviation</strong> <strong>Helmet</strong>1. <strong>Hard</strong> shell2. Sight protector3. Visor4. Complete microphone holder5. Receiver mounting unit6. Soft cap7. Shock absorbing insert8. Conductor with RWN plug9. Oxygen mask attachment10. Back lining11. Sight holder12. Adjustment device UD-1 (optional)Phonic installation parametersdynamic microphoneimpedance module ........................................... 600 W +45% -35%2minimum effectiveness ..................................... 0,5 mV/N/mmicrophone amplifierworking frequency range ......................................300 - 3500 Hzallowable supply voltage ...................................... 3 - 10 Vreceiver circuit resistance ....................................................... 520 WOperational use range0 0environment temperature ................................. -40 C +90 Cvibration ........................................................... 18 - 300 Hzgravity load ...................................................... ± 5 g
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