Designed for communication in zero gravity and on the ground. Provides for stable connection when exposed to acoustic noise with a total level of up to 100 dB.
Suitable for operation at temperatures from minus 10 ºС to 35 ºС and high relative humidity to 98 % at temperature of 35 ºС
| Operating frequency range, Hz | 150 – 7000 |
| Frequency range of the receiving path, Hz | 300 – 3400 |
| The module of the total electrical resistance of the receiving path at a frequency of 1000 Hz, Ohm | 600 ± 180 |
| Output voltage of the transmission path, not less than, mV | 250 ± 50 |
| The response of the phone at a frequency of 1000 Hz, not less than, Pa | 4,5 |
| Supply voltage of the transmission path, V | 8,2 ± 0,8 |
| Verbal intelligibility according to GOST 16600-72, not lower, class | I |
| The pressure of the gas medium with an oxygen content of from 21 to 100%, mm RT. st . | 240 – 1260 |
| Weight, no more | 190 г |
