A new integrated satellite navigation and speed log system with combined 24-channel GPS-Glonass positioning — Debeg Satlog 4124 — has been introduced by STN Atlas Marine Electronics. Providing a coinciding or separate position and speed calculations via GPS, Differential GPS and/or Glonass satellites, the system provides worldwide positional and speed accuracy of 15 m and 0.2 knots, respectively. Corresponding differential mode accuracies, derived from an integral multitrack differential beacon receiver, are 1 m and 0.1 knots. The system is designed for any type of marine navigation operation, as well as specialist applications, namely hydrographic surveying, buoy positioning and oceanographic research.