Tank Interphone System R-174 provides for not only reliable internal communication for all the crew members without any restrictions but also communication with the external communication means.

• simultaneous independent 2-channel communication within expanded USW band

• higher quality of internal communication

• operational frequency band from 30.025 to 79.975 MHz

• 10 preselected frequencies starting to operate without additional trimming

• frequency hopping with 1 kHz interval

• steady internal communication at acoustic noise up to 133 dB