Phorcys Stheno + Euryale Software License

Unlock Phorcys Stheno + Euryale capability on compatible Popoto Modem systems, enabling support for the Phorcys secure underwater communications standard with advanced interoperable networking features. Designed for mission flexibility and protected subsea communications, this license activates Stheno (20–28 kHz) for short-range, higher-frequency operations and Euryale (8–12 kHz) for extended medium-range communications on supported modem hardware and software platforms.

Euryale operation requires a compatible low-frequency transducer, such as the PMT-10 available here.
Supported on systems based on the PMM4511 (Stheno only), PMM5544 and PMM6081 acoustic modem platforms.