Main ❯ Underwater wireless voice systems ❯ Media
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| RedPhone-OS: Securing the transducer with a carabiner |
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| RedPhone-OS: Checking the serviceability of the transducer and the microphone before use |
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| RedPhone-OS: Tests in a shallow body of water, including without a direct line of sight |
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| January 2019 |
| Lake Sarpa (southern pond, Google Maps) |
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| RedPhone-OS: Tests in a shallow body of water at a range of 900 m |
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| January 2018 |
| V. I. Lenin Navigation Canal (Google Maps) |
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