Main ❯ Underwater Wireless voice systems (Underwater telephone) ❯ Media: tests videos, tutorials etc.
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RedPhone-OS: Securing an underwater transducer connector by carabine
RedPhone-OS: Checking before usage
RedPhone-OS: Shallow water tests (including non-line-of-sight communication)
Place: Sarpa lake
Time: January 2019
RedPhone-OS: Shallow water tests at a distance 900 meters
Place: Shipping channel named after V.I. Lenin
Time: January 2018
