The received AX.25 frames (APRS or not) can be saved to files in three different formats:
All three format files can be read back into YAAC at a later time. Note that, because log file playback could be from a considerable time in the past, filtering and purging based on packet age does not apply to played-back packets. Also, since such packets are effectively obsolete in the real-time network, they will not be digipeated or I-gated by YAAC.
These formats are also selectable for automatic logging of received and locally transmitted messages.
Objects and Items can be saved and loaded from files in the UIView .pos file format. This format is the same as the APRS packet format for Object messages, one message per line, and each non-comment line starting with ';' for a timestamped Object record.