User's Manual

Iridium Satellite LLC
9601 Transceiver –AT Command Reference
Iridium Satellite LLC Proprietary & Confidential Information Page 29 of 51
Information contained herein is preliminary and subject to change without further notice
Time localization: None. The system time value is always expressed in GMT time.
Resolution and accuracy: The resolution of the system time is one Iridium frame
tick, or 90 ms. Accuracy as measured by the difference between the time reported
and the actual time it is sent out the 9601 serial port should not exceed 4 frame
ticks (.36 seconds) and in most cases will be one frame tick (.09 seconds) or less.