Designed for operational discreet communication and silent calls. It provides audio signal transmission and wireless reception when working with radio communication sets equipped with false response protection system and tone dialling.
Suitable for operation at temperatures from minus 10 ºС to 40 ºС and high relative humidity to 95 % at temperature of 25 ºС
wireless acoustic “earpiece” receiver ПА-1 1.5 V battery with up to 50 hours life is used
| The maximum sound pressure level of the receiver in the frequency range 200 - 5000 Hz, not less than, dB | 100 |
| Resistance of the transmitting antenna to a direct current, Ohm | 8 |
| Paraphonic sensitivity of the microphone, not less than, mV / Pa | 5 |
| Depth of volume control of the receiving circuit, at least, dB | 20 |
| Sensor steady-state voltage, not less, V | 1,8 |
| Weight, no more | 75 |
