{
    "meta": {
        "saved_at": "2025-11-05T14:51:28+01:00",
        "freq_groups": {
            "28_20_8": {
                "label": "28, 20, 8",
                "min": 758,
                "max": 960,
                "mw": 859
            },
            "32_3": {
                "label": "32, 3",
                "min": 1452,
                "max": 1880,
                "mw": 1666
            },
            "1_WLAN": {
                "label": "1, WLAN",
                "min": 2110,
                "max": 2485,
                "mw": 2297.5
            },
            "7_38": {
                "label": "7, 38",
                "min": 2570,
                "max": 2690,
                "mw": 2630
            },
            "n78": {
                "label": "n78",
                "min": 3400,
                "max": 3800,
                "mw": 3600
            },
            "WLAN_L": {
                "label": "WLAN (5.1–5.7 GHz)",
                "min": 5150,
                "max": 5725,
                "mw": 5437.5
            },
            "WLAN_H": {
                "label": "WLAN (5.9–6.4 GHz)",
                "min": 5925,
                "max": 6425,
                "mw": 6175
            }
        }
    },
    "materials": {
        "concrete_heavy": {
            "name": "Concrete Heavy",
            "thickness_cm": 40,
            "attenuation_db": {
                "28_20_8": 1.01,
                "32_3": -3.944,
                "1_WLAN": -0.21,
                "7_38": -2.41,
                "n78": -5.36,
                "WLAN_L": -13.69,
                "WLAN_H": -14.27
            }
        },
        "concrete_medium": {
            "name": "Concrete Medium",
            "thickness_cm": 20,
            "attenuation_db": {
                "28_20_8": null,
                "32_3": null,
                "1_WLAN": null,
                "7_38": null,
                "n78": null,
                "WLAN_L": null,
                "WLAN_H": null
            }
        },
        "concrete_light": {
            "name": "Concrete Light",
            "thickness_cm": 10,
            "attenuation_db": {
                "28_20_8": -1,
                "32_3": -1.68,
                "1_WLAN": 2.5,
                "7_38": -3,
                "n78": -4.33,
                "WLAN_L": -6.73,
                "WLAN_H": -13.6
            }
        },
        "door_wood_heavy": {
            "name": "Door Wood Heavy",
            "thickness_cm": 6,
            "attenuation_db": {
                "28_20_8": null,
                "32_3": null,
                "1_WLAN": null,
                "7_38": null,
                "n78": null,
                "WLAN_L": null,
                "WLAN_H": null
            }
        },
        "door_metal": {
            "name": "Door Metal",
            "thickness_cm": 4.5,
            "attenuation_db": {
                "28_20_8": -16.75,
                "32_3": -19.32,
                "1_WLAN": -28.9,
                "7_38": -20.67,
                "n78": -23.42,
                "WLAN_L": -24.63,
                "WLAN_H": -33.25
            }
        },
        "drywall_heavy": {
            "name": "Drywall Heavy",
            "thickness_cm": 2,
            "attenuation_db": {
                "28_20_8": 1,
                "32_3": -0.5,
                "1_WLAN": -0.8,
                "7_38": -3,
                "n78": -1.2,
                "WLAN_L": -2.22,
                "WLAN_H": -4.56
            }
        },
        "glass_window": {
            "name": "Glass Window",
            "thickness_cm": 1,
            "attenuation_db": {
                "28_20_8": -1,
                "32_3": -1.2,
                "1_WLAN": -1.8,
                "7_38": -3.11,
                "n78": -8.73,
                "WLAN_L": -2.6,
                "WLAN_H": -5.66
            }
        },
        "elevator_cage": {
            "name": "Elevator Cage",
            "thickness_cm": 1,
            "attenuation_db": {
                "28_20_8": null,
                "32_3": null,
                "1_WLAN": null,
                "7_38": null,
                "n78": null,
                "WLAN_L": null,
                "WLAN_H": null
            }
        },
        "plastered_brick": {
            "name": "Verputzte Ziegelwand",
            "thickness_cm": 27,
            "attenuation_db": {
                "28_20_8": -3.46,
                "32_3": -0.09,
                "1_WLAN": -7.83,
                "7_38": 0.04,
                "n78": -3.76,
                "WLAN_L": -9.8,
                "WLAN_H": -8.26
            }
        },
        "office_door_simple": {
            "name": "Einfache Bürotür",
            "thickness_cm": 4,
            "attenuation_db": {
                "28_20_8": -1.54,
                "32_3": 1.07,
                "1_WLAN": 0.74,
                "7_38": -0.74,
                "n78": -3.2,
                "WLAN_L": -6.07,
                "WLAN_H": -0.5
            }
        },
        "glass_door_corr": {
            "name": "Glastür (wie unsere Flure)",
            "thickness_cm": 0.5,
            "attenuation_db": {
                "28_20_8": 1,
                "32_3": -1.03,
                "1_WLAN": -1.34,
                "7_38": -2.1,
                "n78": -6.3,
                "WLAN_L": 1.13,
                "WLAN_H": -3.45
            }
        },
        "drywall_single": {
            "name": "Trockenbauwand beidseitig einfach beplankt",
            "thickness_cm": 10,
            "attenuation_db": {
                "28_20_8": -0.6,
                "32_3": -0.88,
                "1_WLAN": 1.4,
                "7_38": -8,
                "n78": -4.93,
                "WLAN_L": -5.6,
                "WLAN_H": -7.11
            }
        },
        "drywall_double": {
            "name": "Trockenbauwand beidseitig doppelt beplankt",
            "thickness_cm": 12,
            "attenuation_db": {
                "28_20_8": 1.2,
                "32_3": -2,
                "1_WLAN": -2.95,
                "7_38": -3,
                "n78": -8,
                "WLAN_L": -7.9,
                "WLAN_H": -15.67
            }
        },
        "thermo_window": {
            "name": "Thermofenster",
            "thickness_cm": 5,
            "attenuation_db": {
                "28_20_8": -13.2,
                "32_3": -20,
                "1_WLAN": -23.15,
                "7_38": -16.93,
                "n78": -23.2,
                "WLAN_L": -20.7,
                "WLAN_H": -21.2
            }
        },
        "fire_F60_F90": {
            "name": "Brandschutz-Tür\/Wand F60 \/ F90",
            "thickness_cm": 7,
            "attenuation_db": {
                "28_20_8": -13.32,
                "32_3": -23.87,
                "1_WLAN": -21.4,
                "7_38": -21.67,
                "n78": -26.34,
                "WLAN_L": -31.63,
                "WLAN_H": -40.55
            }
        }
    }
}