mcmurdo Smartfind M10, User Manual

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4.3 SD Card Data Logging
The Smartfind M10 records voyage data onto a SD card in log files in a .txt
format. The compatible SD card types supported by the M10 are:

Standard “SD” with maximum 2GB size
 Supported data format: FAT12/16

Standard “SDHC” with maximum 32GB size

Supported data format: FAT32
The log files have naming convention of AIS_XXXXXX.txt with increment
from 000001 to 999999. Entry in the log file is vessel’s GPS sentence in
IEC 61162 format.
The SD card is hot-swappable. Insert the SD card into the slot until the
card is seated. When the transponder is powered on, it will commence
logging voyage data and indicate the writing process by flashing the green
SD LED indicator.
The device overwrites the oldest data when the storage space is full.
Removing SD card from the transponder stops data logging immediately,
and the SD LED will turn off.
It’s recommended to format your SD card regularly, e.g. every 1~3 month
for optimal data integrity. Please save any data you wish to keep prior to
formatting your memory card.