Portable electric megaphone '' 3-PEM-5 ''.
Acoustic systems, passive or active, as well as electro-acoustic units, hearing aids, electric megaphones, intercoms ...Electric megaphonesSince 1972, the electric megaphone "3-PEM-5" has been producing the Dnepropetrovsk radio plant. The device is designed for short-term loud directional speech transmission. It is recommended for use when transmitting speech in open space or in large enclosed spaces. The nominal output power of the amplifier is 3 W. The duration of operation with one power source in the transmission-silence mode of 1:10, when using rechargeable batteries 15 hours, when using A-316 cells - 8 hours. Legible audibility range 150 ... 200 meters. The working band of audio frequencies is 710 ... 3150 Hz. The dimensions of the electric megaphone are 193x275x260 mm. Weight with batteries - 1.6 kg.
