CC-Tweaked/src/main/resources/data/computercraft/recipes/wireless_modem_normal.json

{
    "type": "crafting_shaped",
    "pattern": [
        "###",
        "#E#",
        "###"
    ],
    "key": {
        "#": { "tag": "forge:stone" },
        "E": { "item": "minecraft:ender_pearl" }
    },
    "result": { "item": "computercraft:wireless_modem_normal" }
}