.6 be capable of selecting automatically the appropriate satellite transmitted signals for determination of the ship's position with the required accuracy and update rate;
.7 be capable of acquiring satellite signals with input signals having carrier levels in the range of -130 dBm to -1 20 dBm. Once the satellite signals have been acquired the equipment should continue to operate satisfactorily with satellite signal having carrier levels down to - 133 dBm;
.8 be capable of acquiring position to the required accuracy, within 30 min, when there is no valid almanac data;
.9 be capable of acquiring position to the required accuracy, within 5 min, when there is valid almanac data;
.10 be capable of re-acquiring position to the required accuracy, within 5 min when the GLONASS signals are interrupted for a period of at least 24 h, but there is no loss of power;
4 PROTECTION
Precautions should be taken to ensure that no permanent damage can result from an accidental short circuit or grounding of the antenna or any of its input or output connections or any of the GLONASS receiver equipment inputs or outputs for a duration of 5 min.
5 FAILURE WARNINGS AND STATUS INDICATIONS
5.1 The equipment should provide an indication if the position calculated is likely to be outside of the requirements of these performance standards.
5.2 The GLONASS receiver equipment should provied as a minimum:
