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[
{
"id": "b4b8a7b5-61f8-45bc-82a8-a893b10a70af",
"kind": "assembly",
"name": "Antennen bauen und damit herumspielen",
"slug": "building-antennas-and-tinkering-with-them",
"url": "https://api.events.ccc.de/congress/2025/event/b4b8a7b5-61f8-45bc-82a8-a893b10a70af/?format=api",
"track": null,
"assembly": "off-grid-messaging",
"room": "e8804b7b-5cde-4f66-864e-d3fa74e1f48c",
"location": "tbd",
"language": "de, en",
"description": "Energy must leave into space so we can communicate, for that we need antennas.\r\nThis small workshop will provide a rough introduction to what characteristics an antenna has and how you can build antennas for your devices. And in the end we'll build some antennas together, so that you are well equipped for congress.\r\nWe'll bring a small selection of tools as well as supplies, but we'll be happy if you bring some along yourself, too.\r\nIf you are a Junghacker:in this session is especially well suited for you, but if you want to join us for the same workshop in the afternoon you're as welcome.",
"schedule_start": "2025-12-28T12:00:00+01:00",
"schedule_duration": "01:00:00",
"schedule_end": "2025-12-28T13:00:00+01:00"
},
{
"id": "d79cfc7a-f4c7-4291-be1d-a5ee626a4314",
"kind": "assembly",
"name": "Building antennas and tinkering with them",
"slug": "building-antennas-and-tinkering-with-them_az05",
"url": "https://api.events.ccc.de/congress/2025/event/d79cfc7a-f4c7-4291-be1d-a5ee626a4314/?format=api",
"track": null,
"assembly": "off-grid-messaging",
"room": "e8804b7b-5cde-4f66-864e-d3fa74e1f48c",
"location": "tbd",
"language": "en, de",
"description": "Energy must leave the radio into space so we can communicate, for that we need antennas.\r\nThis small workshop will provide a rough introduction to what characteristics an antenna has and how you can build antennas for your devices. And in the end we'll build some antennas together, so that you are well equipped for congress.\r\nWe'll bring a small selection of tools as well as supplies, but we'll be happy if you bring some along yourself, too.\r\nIf you are a Junghacker:in the same session earlier today may fit into your plans a little better, but if you want to join us for this session you're as welcome.",
"schedule_start": "2025-12-28T16:00:00+01:00",
"schedule_duration": "01:00:00",
"schedule_end": "2025-12-28T17:00:00+01:00"
},
{
"id": "4e30dafe-2356-492d-870f-41f6018eb6b4",
"kind": "assembly",
"name": "Mesh Radio Workshop",
"slug": "mesh-radio-workshop",
"url": "https://api.events.ccc.de/congress/2025/event/4e30dafe-2356-492d-870f-41f6018eb6b4/?format=api",
"track": null,
"assembly": "off-grid-messaging",
"room": "e8804b7b-5cde-4f66-864e-d3fa74e1f48c",
"location": "OGM Assembly (Hall H)",
"language": "en, de",
"description": "### Building Autonomy: Mesh Radio Hardware Workshop\r\n\r\nDecentralized communication infrastructures require more than finished devices: understanding the hardware level enables critical engagement with proprietary designs and creates autonomy beyond commercial dependencies. The workshop covers complete assembly of an nRF52-based mesh node in Heltec form-factor, where participants gain practical comprehension of decentralized radio network architecture through soldering components, integrating LoRa modules, and installing firmware. Critical decentralization means not merely using distributed networks but mastering their technical foundations: building custom boards reveals trade-offs between energy efficiency, range, and cost, enables design adaptation to specific requirements, and develops capabilities for repairing and modifying existing infrastructure. Control over hardware design and firmware variants dissolves dependence on manufacturer decisions and permits experimental topologies that commercial solutions cannot accommodate. The workshop targets advanced participants with mesh operation experience, as technical fundamentals are prerequisite knowledge.\r\n\r\n**Prerequisites:** Operational experience with mesh nodes (advanced) \r\n**Materials:** PCB kits available, pricing will be announced",
"schedule_start": "2025-12-29T16:00:00+01:00",
"schedule_duration": "01:30:00",
"schedule_end": "2025-12-29T17:30:00+01:00"
}
]