communication timeout

[TOPMAN]

HARDWARE: IPAQ hx4700; ATRONIX BTGPS01 receiver
SOFTWARE: MEMORY MAP

Memory-Map is persistently showing the message, 'Communication timeout'.
Sometimes it will show the GPS location/cursor. Most often it will not at the moment.

Please can anyone explain exactly what communication timeout means and kindly offer a solution because there seeminly is nothing in the software which indicates how to resolve this issue.

Thanks in advance.
_________________
TOPMAN
Taunton UK

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