{
    "DPGProtocolVersion": "3.0",
    "grids": [
        {
            "gridID": "hcs_antenna",
            "timestamp": "2026-05-29T14:15:47Z"
        },
        {
            "gridID": "hcs_antenna_1station",
            "timestamp": "2026-05-29T14:15:47Z"
        },
        {
            "gridID": "hcs_antenna_2station",
            "timestamp": "2026-05-29T14:15:47Z"
        },
        {
            "gridID": "hv-mv-lv",
            "timestamp": "2026-05-29T14:15:47Z"
        }
    ]
}