39c3; bitsundbaeume_aboutfreedom: 0.21; ccc: 2.0; chaos_jetzt: 0.9; cdc: 0.24; fnf: 0.12; free-knowledge-habitat: 0.13; haecksen-assembly: 1.4; music: 1.5; sharedtables: 1.0; spaetverkauf: 0.6; sgmk: 1.0; 2025-12-28 15:41:22.396426+00:0039c32025-12-27T10:00:00+00:002025-12-30T15:00:00+00:00400:10Europe/Berlinhttps://events.ccc.de/congress/2025/hub/https://events.ccc.de/congress/2025/hub/2025-12-27T13:00:00+01:0013:0002:00Chaoswellen Assembly39c3-pota-parks-on-the-air-day-1de, enotherIntroduction to Parks on the Air (POTA). POTA is an international radiosport award program that encourages licensed amateur radio operators to visit, enjoy and operate portable equipment in a variety of parks and public lands.POTA introduction "in a nutshell" followed by joint POTA activation on shortwave in the "Planten un Blomen" park right next to the CCH. We meet daily at 01:00 p.m. at the Assembly for a short introduction and then go out into the park together. The participants learn how to set up a portable shortwave station and get a crash course in shortwave operation. Then it's time to get on the air! Other radio amateurs around the world are waiting to contact us. Can you manage the 10 radio connections necessary for a successful "activation" of the park? NOTE: We meet AT THE CHAOSWELLE ASSEMBLY and start there with a short introduction to the POTA program. Then we go out into the park together. Dress warmly and weatherproof! We go outside even when it's raining or snowing! If anyone wants to join us later: radio amateurs can reach us in the park on 145.500 MHz FM. Our location in the park: [OpenStreetMap](https://www.openstreetmap.org/directions?engine=fossgis_osrm_foot&route=53.561346%2C9.986447%3B53.559593%2C9.986438#map=18/53.560490/9.986277) https://events.ccc.de/congress/2025/hub/https://usercontent.events.ccc.de/congress/2025/hub/usercontent/e/45ce2f713193/pota_banner_winter_2.jpgDK4HAAhttps://events.ccc.de/congress/2025/hub/event/detail/pota-parks-on-the-air-day-1false2025-12-27T17:10:00+01:0017:1000:20Chaoswellen Assembly39c3-sparkiede, enotherHow curiosity developed a good tool for antennas. and how you can do it too.Antennen aus dem 3D Drucker, und wie es dazu kam. eine kurze einfuerung in HF Voodoo und antennendesing. Ein show and tell. marcohttps://events.ccc.de/congress/2025/hub/event/detail/sparkiefalse2025-12-27T17:30:00+01:0017:3000:20Chaoswellen Assembly39c3-amateurfunk-goes-politik-oder-wie-ich-das-overengideotherEmergency communications in amateur radio had not really attracted much attention in Berlin politics until now. In this short talk, I explain how I wanted to change that, how I probably overengineered things in the process, and whether anything came of it in the end—apart from some nice stamps. Tnyhttps://events.ccc.de/congress/2025/hub/event/detail/amateurfunk-goes-politik-oder-wie-ich-das-overengifalse2025-12-28T13:00:00+01:0013:0002:00Chaoswellen Assembly39c3-pota-parks-on-the-air-day-2de, enotherIntroduction to Parks on the Air (POTA). POTA is an international radiosport award program that encourages licensed amateur radio operators to visit, enjoy and operate portable equipment in a variety of parks and public lands.POTA introduction "in a nutshell" followed by joint POTA activation on shortwave in the "Planten un Blomen" park right next to the CCH. We meet daily at 01:00 p.m. at the Assembly for a short introduction and then go out into the park together. The participants learn how to set up a portable shortwave station and get a crash course in shortwave operation. Then it's time to get on the air! Other radio amateurs around the world are waiting to contact us. Can you manage the 10 radio connections necessary for a successful "activation" of the park? NOTE: We meet AT THE CHAOSWELLE ASSEMBLY and start there with a short introduction to the POTA program. Then we go out into the park together. Dress warmly and weatherproof! We go outside even when it's raining or snowing! If anyone wants to join us later: radio amateurs can reach us in the park on 145.500 MHz FM. Our location in the park: [OpenStreetMap](https://www.openstreetmap.org/directions?engine=fossgis_osrm_foot&route=53.561346%2C9.986447%3B53.559593%2C9.986438#map=18/53.560490/9.986277) https://events.ccc.de/congress/2025/hub/https://usercontent.events.ccc.de/congress/2025/hub/usercontent/e/6ea30c950450/pota_banner_winter_2.jpgDK4HAAhttps://events.ccc.de/congress/2025/hub/event/detail/pota-parks-on-the-air-day-2false2025-12-28T16:30:00+01:0016:3002:00Chaoswellen Assembly39c3-lateshift-pota-parks-on-the-airde, enotherIntroduction to Parks on the Air (POTA). POTA is an international radiosport award program that encourages licensed amateur radio operators to visit, enjoy and operate portable equipment in a variety of parks and public lands. Due to popular demand, now also available at a later time!Due to popular demand, now also available at a later time! POTA introduction "in a nutshell" followed by joint POTA activation on shortwave in the "Planten un Blomen" park right next to the CCH. We meet daily at 01:00 p.m. at the Assembly for a short introduction and then go out into the park together. The participants learn how to set up a portable shortwave station and get a crash course in shortwave operation. Then it's time to get on the air! Other radio amateurs around the world are waiting to contact us. Can you manage the 10 radio connections necessary for a successful "activation" of the park? NOTE: We meet AT THE CHAOSWELLE ASSEMBLY and start there with a short introduction to the POTA program. Then we go out into the park together. Dress warmly and weatherproof! We go outside even when it's raining or snowing! If anyone wants to join us later: radio amateurs can reach us in the park on 145.500 MHz FM. Our location in the park: [OpenStreetMap](https://www.openstreetmap.org/directions?engine=fossgis_osrm_foot&route=53.561346%2C9.986447%3B53.559593%2C9.986438#map=18/53.560490/9.986277) https://events.ccc.de/congress/2025/hub/https://usercontent.events.ccc.de/congress/2025/hub/usercontent/e/aaec5c71f1fa/pota_banner_winter.jpgDK4HAAhttps://events.ccc.de/congress/2025/hub/event/detail/lateshift-pota-parks-on-the-airfalse2025-12-28T20:00:00+01:0020:0001:00Chaoswellen Assembly39c3-funksender-finden-mit-gehackten-funkgeratendeotherAmateurfunkpeilen mit günstigen Funkgeräten und OpenSource-Firmware und das Projekt draussenfuchs.de im Überblick.This talk will be in German. Amateur radio direction finding with inexpensive radios and open-source firmware, and an overview of the draussenfuchs.de project. DK4HAAhttps://events.ccc.de/congress/2025/hub/event/detail/funksender-finden-mit-gehackten-funkgeratenfalse2025-12-29T13:00:00+01:0013:0002:00Chaoswellen Assembly39c3-pota-parks-on-the-air-day-3de, enotherIntroduction to Parks on the Air (POTA). POTA is an international radiosport award program that encourages licensed amateur radio operators to visit, enjoy and operate portable equipment in a variety of parks and public lands.POTA introduction "in a nutshell" followed by joint POTA activation on shortwave in the "Planten un Blomen" park right next to the CCH. We meet daily at 01:00 p.m. at the Assembly for a short introduction and then go out into the park together. The participants learn how to set up a portable shortwave station and get a crash course in shortwave operation. Then it's time to get on the air! Other radio amateurs around the world are waiting to contact us. Can you manage the 10 radio connections necessary for a successful "activation" of the park? NOTE: We meet AT THE CHAOSWELLE ASSEMBLY and start there with a short introduction to the POTA program. Then we go out into the park together. Dress warmly and weatherproof! We go outside even when it's raining or snowing! If anyone wants to join us later: radio amateurs can reach us in the park on 145.500 MHz FM. Our location in the park: [OpenStreetMap](https://www.openstreetmap.org/directions?engine=fossgis_osrm_foot&route=53.561346%2C9.986447%3B53.559593%2C9.986438#map=18/53.560490/9.986277) https://events.ccc.de/congress/2025/hub/https://usercontent.events.ccc.de/congress/2025/hub/usercontent/e/e376bdeda7dc/pota_banner_winter_2.jpgDK4HAAhttps://events.ccc.de/congress/2025/hub/event/detail/pota-parks-on-the-air-day-3false2025-12-29T15:00:00+01:0015:0002:00Chaoswellen Assembly39c3-flinta-pota-party-parks-on-the-airde, enotherIntroduction to Parks on the Air (POTA) for FLINTA*. POTA is an international radiosport award program that encourages licensed amateur radio operators to visit, enjoy and operate portable equipment in a variety of parks and public lands.POTA introduction for FLINTA* followed by joint POTA activation on shortwave in the "Planten un Blomen" park right next to the CCH. We meet at 03:00 p.m. at the Assembly for a short introduction and then go out into the park together. You'll learn how to set up a portable shortwave station and get a crash course in shortwave operation. Then it's time to get on the air! Other radio amateurs around the world are waiting to contact us. Can you manage the 10 radio connections necessary for a successful "activation" of the park? NOTE: We meet AT THE CHAOSWELLE ASSEMBLY and start there with a short introduction to the POTA program. Then we go out into the park together. Dress warmly and weatherproof! We go outside even when it's raining or snowing! If anyone wants to join us later: our location in the park: [OpenStreetMap](https://www.openstreetmap.org/directions?engine=fossgis_osrm_foot&route=53.561346%2C9.986447%3B53.559593%2C9.986438#map=18/53.560490/9.986277) https://events.ccc.de/congress/2025/hub/https://usercontent.events.ccc.de/congress/2025/hub/usercontent/e/b67fb433a556/pota_banner_ccc.jpgDK4HAAhttps://events.ccc.de/congress/2025/hub/event/detail/flinta-pota-party-parks-on-the-airfalse2025-12-29T17:30:00+01:0017:3001:00Chaoswellen Assembly39c3-bauen-der-xota-antenne-building-the-xota-antennade, enotherDK1BOUhttps://events.ccc.de/congress/2025/hub/event/detail/bauen-der-xota-antenne-building-the-xota-antennafalse2025-12-29T18:30:00+01:0018:3000:30Chaoswellen Assembly39c3-openrtx-meetupenotherOpenRTX community meetupOpenRTX community meetup marcohttps://events.ccc.de/congress/2025/hub/event/detail/openrtx-meetupfalse