When used with the car battery cable for permenent power on
installation, do make sure HI-601VT main unit can “see” the
sky (no metal material on above) so that the GPS inside can
get 3D fixed. In case of hiding HI-601VT inside car trunk,
please use the GPS (MMCX) external antenna.
MMCX External antenna plug
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HI-601VT-lite