0.1 dc33 2025-08-07 2025-08-10 4 00:05 https://cfp.hamvillage.org https://cfp.hamvillage.org/media/dc33/img/hrv_dot_log_color_transparent_D11O5K2.png America/Los_Angeles Ham Exams Room (W320) Creator Workshop 2025-08-07T10:00:00-07:00 10:00 07:00 Interesting in earning your ham license but don't know where to start? The HRV is offering a full-day class covering the entry level (Technician) license on Thursday, taught by Dan KB6NU dc33-14-ham-in-a-day-class en Advance registration is recommended as this class usually fills to capacity. Reserve your spot today with a $20 deposit, refunded upon attendance of the class. [Reserve your spot today](https://www.zeffy.com/en-US/ticketing/ham-in-a-day-def-con--33) false https://cfp.hamvillage.org/dc33/talk/EEQPNC/ https://cfp.hamvillage.org/dc33/talk/EEQPNC/feedback/ Ham Radio Village (W321) Creator Activity 2025-08-08T11:00:00-07:00 11:00 01:00 Construct, test, and use a real antenna. Two kits are available: a VLF Foxhunt Loop to win your local fox hunts, and a LoRa Yagi antenna and become the alpha-ham dominating oppressive gain and narrow beam width. Join us as we condense the sum total of humanity's antenna knowledge into 30 gripping fun-filled minutes of building, testing, and using a built from scratch antenna. Afterwards the instructors will be around to help with assembly in the Village. dc33-5-antenna-building-make-your-own-lora-yagi-and-vhf-foxhunt-loop-workshop Danny QuistNate Martin (wants.beer) en This talk will demonstrate building this year's antenna building workshop. Our selections this year include a VHF loop for fox-hunting, suitable for use in this year's fox-hunt. Second is a LoRa compatible Yagi. You will learn the basics of antenna construction, testing, and finally verifying with the cold cruel uncaring reality of physics that your antenna works. We will also cover trouble-shooting antennas, common pitfalls, and unsolicited life advice. false https://cfp.hamvillage.org/dc33/talk/M38KKB/ https://cfp.hamvillage.org/dc33/talk/M38KKB/feedback/ Ham Radio Village (W321) Creator Talk 2025-08-08T13:00:00-07:00 13:00 00:30 in this talk we review how amateur radio were used in the relief effort in NYC Sept 11. dc33-10-how-ham-radio-supported-911-for-24-years jay ferron en What do you do when major Communications are disrupted and how amateur radio came to the rescue. We will talk about all the technology that was user to support the relief effort. Staffing requirements and jobs that Ham Radio operators did, challenges and solution for working a Major disaster will be covered. Lessons learned and opportunities for you to become involved in emergency communications. false https://cfp.hamvillage.org/dc33/talk/ZXRKUE/ https://cfp.hamvillage.org/dc33/talk/ZXRKUE/feedback/ Ham Radio Village (W321) Creator Talk 2025-08-08T14:00:00-07:00 14:00 01:00 Meshtastic is an innovative open-source project leveraging LoRa technology to create affordable, robust, off-grid mesh communication networks. This presentation offers an approachable introduction to Meshtastic and LoRa, covering essential concepts and practical applications. Participants will gain foundational knowledge of mesh networking technology, along with a hands-on demonstration of setting up a Meshtastic network using a readily available ESP32 device and a smartphone. Ideal for both amateur radio enthusiasts and newcomers to mesh networking, this session will highlight how Meshtastic empowers users with resilient communication in remote and emergency scenarios. dc33-7-meshtastic-mesh-networking-made-easy-with-lora-and-esp32 Jon Marler (K4CHN) en This session provides participants with an accessible introduction to Meshtastic, a powerful yet simple-to-use mesh networking solution built upon LoRa's long-range radio technology. We will start by exploring core mesh networking principles and LoRa's capabilities, emphasizing how these technologies complement amateur radio practices and enhance emergency communications. Following a concise overview, attendees will experience a practical demonstration of setting up a Meshtastic network using an inexpensive ESP32-based kit, readily available through online retailers. The demonstration includes installing smartphone apps, flashing firmware, and establishing communication between devices. Attendees will leave equipped with the foundational knowledge required to deploy their own resilient mesh networks for various communication needs. false https://cfp.hamvillage.org/dc33/talk/BQML87/ https://cfp.hamvillage.org/dc33/talk/BQML87/feedback/ Ham Radio Village (W321) Creator Talk 2025-08-08T16:00:00-07:00 16:00 00:30 This presentation will detail the design and implementation of a Meshtastic-based command and control infrastructure. By leveraging the Meshtastic network for out-of-band communications, operators can achieve secure, decentralized monitoring and management of Linux hosts in hard-to-reach environments. Whether supporting a remote dropbox deployment or a distant ham shack, this solution enables encrypted shell access and configuration changes using a low-cost ($25) LoRa radio over extended ranges. Although not intended for high-bandwidth tasks, it provides an efficient platform for debugging, troubleshooting, and command execution in constrained network conditions. Furthermore, by utilizing the existing Meshtastic mesh, users can often avoid the complexity of building a dedicated network. dc33-9-meshtastic-command-control Eric Escobar en Command and control infrastructure using fully encrypted meshtastic networks. false https://cfp.hamvillage.org/dc33/talk/97LPRK/ https://cfp.hamvillage.org/dc33/talk/97LPRK/feedback/ Ham Exams Room (W320) Creator Event 2025-08-08T13:00:00-07:00 13:00 05:00 Come take your ham radio license exam at DEF CON 33 for FREE, brought to you by the Ham Radio Village! dc33-11-0-ham-radio-exams InkRF en Registration is **required** and can be completed anytime before taking the exam. [Learn more and register](https://ham.study/sessions/67fefba97bfbbd82ef84e347/1) Exams are drop-in and you can show up ant anytime during the testing window until 45 minutes before the end of the exam session (to allow ample time for testing, grading, and paperwork). One registration covers you for the whole weekend -- no need to pick a specific day. false https://cfp.hamvillage.org/dc33/talk/GU38CM/ https://cfp.hamvillage.org/dc33/talk/GU38CM/feedback/ "Can it Ham" Contest Table (Contest Area) Contest 2025-08-08T10:00:00-07:00 10:00 08:00 Design and build a functioning amateur radio antenna using non-traditional or improvised materials (e.g., tin cans, coat hangers, umbrellas, plumbing pipe). If it looks absurd and still gets on the air, you're doing it right. HRV will have connectors, soldering stations, and some raw materials for available for use. See what other materials you can find to make the best improvised antenna! dc33-12-0-can-it-ham-contest shoot3r en [Full contest rules and information](https://hamvillage.org/events/dc33/canitham) **All antennas must be summitted by 10AM on Sunday** Any antennas not picked up by 2pm on Sunday will be donated to the Ham village or disposed accordingly. false https://cfp.hamvillage.org/dc33/talk/KHDCVN/ https://cfp.hamvillage.org/dc33/talk/KHDCVN/feedback/ Ham Radio Fox Hunt Contest Table (Contest Area) Contest 2025-08-08T10:00:00-07:00 10:00 08:00 Rebooted this year, enjoy a traditional fox hunt tracking down the hidden transmitters. dc33-13-0-ham-radio-fox-hunt - en Up for more of a challenge? Attempt to solve the hidden puzzle within the fox hunt to win the ultimate prize! false https://cfp.hamvillage.org/dc33/talk/UXAAGL/ https://cfp.hamvillage.org/dc33/talk/UXAAGL/feedback/ Ham Radio Village (W321) Creator Talk 2025-08-09T11:00:00-07:00 11:00 00:45 In this talk, we'll explore how Ham radio can help facilitate open and uncensored communications in situations where traditional communications strictly controlled or even blacked out. dc33-4-ham-radio-vs-oppression-how-the-airwaves-defy-censorship Nate Moore en With risks presented by the current global political landscape, Ham radio (amateur radio) has been a powerful tool for communication, especially where governments impose strict control over traditional and digital communication channels. false https://cfp.hamvillage.org/dc33/talk/XEH9DX/ https://cfp.hamvillage.org/dc33/talk/XEH9DX/feedback/ Ham Radio Village (W321) Creator Talk 2025-08-09T12:00:00-07:00 12:00 00:30 This beginner-friendly presentation introduces amateur radio operators and enthusiasts to popular digital modes, highlighting recent advances and innovations. Attendees will learn the basics of well-known digital modes such as APRS, FT8, FT4, and JS8Call, and discover new and emerging technologies, including FreeDV’s RADE and the open-source M17 protocol. The session emphasizes accessible and affordable equipment and software solutions, ensuring that both new and returning participants leave with fresh insights and practical guidance for exploring digital amateur radio. dc33-6-what-s-new-in-amateur-radio-digital-modes Jon Marler (K4CHN) en Digital modes continue to transform amateur radio, offering efficient communication methods and exciting new possibilities. This updated introductory presentation for amateur radio operators and hobbyists covers essential digital modes commonly used across HF, VHF, and UHF bands, providing foundational knowledge and recent developments. Participants will: * Explore Automatic Packet Reporting System (APRS), now enhanced by innovative LoRa technology, modern mapping interfaces, and new portable hardware options. * Get an overview of WSJT-X modes, especially FT8 and FT4, which remain favorites for weak-signal digital communication, along with recent enhancements in usability and contesting. * Learn about JS8Call, a conversational data mode built on FT8 technology, and WSPR, an automated beacon mode ideal for propagation study. *Be introduced to cutting-edge digital voice modes such as FreeDV’s RADE, which utilizes machine learning to significantly improve HF voice quality, and the M17 digital voice protocol, an open-source, community-driven alternative to DMR and D-STAR. *Discover accessible, beginner-friendly hardware solutions, including low-cost HF QRP digital rigs, integrated sound card interfaces, and mobile/portable digital operation setups. This presentation is designed to appeal to newcomers, while offering valuable updates and fresh content for returning attendees. false https://cfp.hamvillage.org/dc33/talk/ZPUBX3/ https://cfp.hamvillage.org/dc33/talk/ZPUBX3/feedback/ Ham Radio Village (W321) Creator Talk 2025-08-09T14:00:00-07:00 14:00 01:00 Orv W6BI will discuss how to create a ham radio IP network with off the shelf hardware and open source software. dc33-3-creating-a-ham-radio-ip-network-with-aredn-software Orv Beach W6BI en Orv W6BI will discuss how to create a ham radio IP network with off the shelf hardware and open source software from AREDN (https://www.arednmesh.org/) The AREDN software supports over a hundred different devices from several different vendors. The AREDN software allows advertising services, such as web servers, cameras, VOIP phones, etc. Usable RF links can be up to 30 miles. For those lacking a line of sight path to an AREDN node, the software supports inter-node network links via the Internet. AREDN islands can be linked via 'superhodes' to allow access to remote nodes. It can be viewed at https://worldmap.arednmesh.org false https://cfp.hamvillage.org/dc33/talk/P79USH/ https://cfp.hamvillage.org/dc33/talk/P79USH/feedback/ Ham Exams Room (W320) Creator Event 2025-08-09T11:00:00-07:00 11:00 07:00 Come take your ham radio license exam at DEF CON 33 for FREE, brought to you by the Ham Radio Village! dc33-11-1-ham-radio-exams InkRF en Registration is **required** and can be completed anytime before taking the exam. [Learn more and register](https://ham.study/sessions/67fefba97bfbbd82ef84e347/1) Exams are drop-in and you can show up ant anytime during the testing window until 45 minutes before the end of the exam session (to allow ample time for testing, grading, and paperwork). One registration covers you for the whole weekend -- no need to pick a specific day. false https://cfp.hamvillage.org/dc33/talk/GU38CM/ https://cfp.hamvillage.org/dc33/talk/GU38CM/feedback/ "Can it Ham" Contest Table (Contest Area) Contest 2025-08-09T10:00:00-07:00 10:00 08:00 Design and build a functioning amateur radio antenna using non-traditional or improvised materials (e.g., tin cans, coat hangers, umbrellas, plumbing pipe). If it looks absurd and still gets on the air, you're doing it right. HRV will have connectors, soldering stations, and some raw materials for available for use. See what other materials you can find to make the best improvised antenna! dc33-12-1-can-it-ham-contest shoot3r en [Full contest rules and information](https://hamvillage.org/events/dc33/canitham) **All antennas must be summitted by 10AM on Sunday** Any antennas not picked up by 2pm on Sunday will be donated to the Ham village or disposed accordingly. false https://cfp.hamvillage.org/dc33/talk/KHDCVN/ https://cfp.hamvillage.org/dc33/talk/KHDCVN/feedback/ Ham Radio Fox Hunt Contest Table (Contest Area) Contest 2025-08-09T10:00:00-07:00 10:00 08:00 Rebooted this year, enjoy a traditional fox hunt tracking down the hidden transmitters. dc33-13-1-ham-radio-fox-hunt - en Up for more of a challenge? Attempt to solve the hidden puzzle within the fox hunt to win the ultimate prize! false https://cfp.hamvillage.org/dc33/talk/UXAAGL/ https://cfp.hamvillage.org/dc33/talk/UXAAGL/feedback/ Ham Radio Village (W321) Creator Talk 2025-08-10T11:00:00-07:00 11:00 00:30 Satellites are constantly orbiting the planet and beaming information back to us. Some of the most interesting information is weather images. As it turns out, it is very easy and cheap to pick up those signals and get a real-time view of your current location. In this talk I will go over what is out there, what you need to get, and the open source software stack to generate amazing images. dc33-8-it-came-from-space hamster en Some of the earliest weather satellites were launched in the 50's. Since that time, technology has come a long ways from simple images of clouds, with new payloads that can see through the clouds and give information like ocean wave heights, ground temperatures, wind speed and direction, and other interesting information. The even better part of this is that all this information is being sent in the clear, continuously, meaning if you can receive it and decode it, you can view and use the data. Be your own weather forecaster! Hardware needed to accomplish this is as simple as a dipole antenna on a tripod and a $30 SDR dongle. On the software side, there are many different programs you can use to collect the signal. Some, like SatDump, even do everything all in one place: tune, decode, and assemble the output all in a single click. It's even possible to setup a schedule and fully automate collecting imagery. Moving beyond the simple APT data, you can get even higher resolution data if you build a simple dish antenna. While it is entirely possible to just hand-hold the antenna with a cell phone strapped to the back to show you where to point, it's just as easy to buy a cheap used dish rotator and have the same software automatically track it for you. Once you get into decoding weather data, it's just a simple hop, skip and a jump to learning how to send signals to amateur radio satellites or even the ISS. And all you need is a Technician license! false https://cfp.hamvillage.org/dc33/talk/WQCSSC/ https://cfp.hamvillage.org/dc33/talk/WQCSSC/feedback/ Ham Exams Room (W320) Creator Event 2025-08-10T11:00:00-07:00 11:00 03:00 Come take your ham radio license exam at DEF CON 33 for FREE, brought to you by the Ham Radio Village! dc33-11-2-ham-radio-exams InkRF en Registration is **required** and can be completed anytime before taking the exam. [Learn more and register](https://ham.study/sessions/67fefba97bfbbd82ef84e347/1) Exams are drop-in and you can show up ant anytime during the testing window until 45 minutes before the end of the exam session (to allow ample time for testing, grading, and paperwork). One registration covers you for the whole weekend -- no need to pick a specific day. false https://cfp.hamvillage.org/dc33/talk/GU38CM/ https://cfp.hamvillage.org/dc33/talk/GU38CM/feedback/ "Can it Ham" Contest Table (Contest Area) Contest 2025-08-10T10:00:00-07:00 10:00 01:00 Design and build a functioning amateur radio antenna using non-traditional or improvised materials (e.g., tin cans, coat hangers, umbrellas, plumbing pipe). If it looks absurd and still gets on the air, you're doing it right. HRV will have connectors, soldering stations, and some raw materials for available for use. See what other materials you can find to make the best improvised antenna! dc33-12-2-can-it-ham-contest shoot3r en [Full contest rules and information](https://hamvillage.org/events/dc33/canitham) **All antennas must be summitted by 10AM on Sunday** Any antennas not picked up by 2pm on Sunday will be donated to the Ham village or disposed accordingly. false https://cfp.hamvillage.org/dc33/talk/KHDCVN/ https://cfp.hamvillage.org/dc33/talk/KHDCVN/feedback/ Ham Radio Fox Hunt Contest Table (Contest Area) Contest 2025-08-10T10:00:00-07:00 10:00 02:30 Rebooted this year, enjoy a traditional fox hunt tracking down the hidden transmitters. dc33-13-2-ham-radio-fox-hunt - en Up for more of a challenge? Attempt to solve the hidden puzzle within the fox hunt to win the ultimate prize! false https://cfp.hamvillage.org/dc33/talk/UXAAGL/ https://cfp.hamvillage.org/dc33/talk/UXAAGL/feedback/