The 50Ohm.de Dummy Load is more than just a practical accessory – it’s the perfect soldering project for newly licensed ham radio operators, training stations, or portable operations. Developed by DL1FLO (Florian Schmid) and DL9MJ (Matthias Jung) in cooperation with the DARC AJW department and blinkyparts, this open-source kit combines functionality and learning. What is a Dummy Load? A dummy load is used to safely test a transmitter without radiating RF energy – the power is converted into heat. Perfect for radio checks, power measurements, and training purposes. Why this Dummy Load? Compact sandwich design with minimal stray inductance Optimized for QRP operation (not suitable for high power) Handy BNC connector Built-in measurement circuit (diode + capacitor) Two identical PCBs for easy assembly 50ohm.de as a learning platform Lovingly hand-packed in Germany Kit Contents 2x identical PCBs 20x 1kΩ resistors (3W, 5%) 1x BNC connector (50 Ohm) 1x 10nF capacitor 1x Schottky diode (BAT41) Perfect for: Young and newly licensed ham radio operators Training & educational stations Outdoor and QRP portable operations Soldering beginners (with detailed manual) Our motto: "Soldering connects!"With the dummy load kit from 50ohm.de and blinkyparts.com, you're not only getting a functional RF test device, but also a fantastic learning experience – perfect as a gift or for your own skills development.👉 Looking for more info or build instructions?Find the full documentation, step-by-step guide, and FAQ in our wiki: 📖 50Ohm Dummy Load – Wiki & Build Guide

Foxhunting for Everyone – with the Draussenfuchs 433 MHz Transmitter The Draussenfuchs 433 MHz Transmitter is a license-free, beginner-friendly foxhunt transmitter for exciting outdoor radio activities. Ideal for schools, youth groups, hobbyists, and anyone curious about radio direction finding – no license required! What is Foxhunting? Foxhunting (also known as ARDF – Amateur Radio Direction Finding) is like a modern scavenger hunt using radio signals. A hidden transmitter ("fox") emits short signals at regular intervals. Participants use directional antennas and receivers to locate the signal source in the field. It's a perfect mix of outdoor fun and radio tech! Inside the Draussenfuchs Transmitter: 433.92 MHz ISM transmitter (license-free) ESP32-C3 Super Mini – WiFi/Bluetooth capable for extensions Emits a 0.2-second beep every 2 seconds (ASK/OOK modulated) Efficient: runs up to 120 hours on AA batteries Optional 3D-printed mount and PCB for easy assembly Perfect for: STEM workshops, education & schools Beginners and unlicensed users Outdoor games & group events DIY electronics enthusiasts Complete Foxhunt Setup Available Want to start immediately? We offer a matching receiver (433 MHz, receive-only – 100% legal without a license) and a compact Yagi directional antenna for signal hunting. We also provide ready-to-go foxhunt rental kits that include transmitters, receivers, and accessories – perfect for events, schools, or clubs! More Info & Build Instructions 👉 You’ll find detailed instructions, parts list, and tips in our Wiki: ➡️ Draussenfuchs on the blinkyparts Wiki Note: The transmitter meets all legal requirements for ISM use (duty cycle & frequency). No amateur radio license required.

433 MHz Yagi Antenna – Lightweight Kit for Fox Hunting & ARDF The Draussenfuchs Yagi Antenna is a lightweight, DIY antenna kit specifically designed for 433 MHz amateur radio direction finding (ARDF) and fox hunting. It is the ideal companion for our Draussenfuchs 433 MHz transmitter. Why this antenna? Optimized for 433 MHz – perfect for ISM and ARDF applications Lightweight & rollable – can be easily packed away when not in use Durable & safe – ideal for outdoor use, youth workshops and educational purposes DIY-friendly – based on simple, widely available hardware store parts Included or needed parts: Measuring tape (12.5 mm wide), cut to length Irrigation tube (6 mm outer diameter) 4-way connectors, heat shrink tubing, M3 threaded rod Custom Yagi PCB for stable assembly SMA connector for side-mounted PCB connection Recommended accessories: Antenna cable (connects radio ↔ antenna) Draussenfuchs 433 MHz transmitter kit Learn more: Find a detailed build guide and tips in our online Wiki: 👉 ➡️ Go to the Wiki article about the Draussenfuchs Yagi Antenna Note: This directional antenna is ideal for license-free 433 MHz use and works with any compatible receiver – such as our legal, receive-only handheld unit, perfect for use without a radio license.

Quansheng UV-K5(8) 433 MHz Receiver – Modified for Legal Fox Hunting Use This special version of the Quansheng UV-K5(8) is specifically modified for use in 433 MHz fox hunting (ARDF). With the custom pre-installed firmware, the transmit function is completely disabled – making it legally usable by non-licensed users in many regions. All required settings are already preconfigured. Just turn it on and start hunting – no programming, no setup required. Perfect for beginners and seasoned foxhunters alike! Key Features ✅ Custom firmware for 433 MHz fox hunting – transmit function disabled ✅ Fully legal for unlicensed users (receive-only) ✅ 200 memory channels & direct access to the 433 MHz band ✅ Dual-band reception (VHF/UHF), includes FM, Airband, NOAA weather ✅ Built-in flashlight, VOX, scrambler, CTCSS/DCS, cross-band features ✅ Frequency counter & wireless radio replication ✅ Rechargeable via USB-C or desktop charger Package Contents 1 × Quansheng UV-K5(8) handheld unit (modified version, no transmit) 1 × 7.2V 1600 mAh Li-Ion battery 1 × SMA-Female dual-band antenna 1 × Desktop charger (110V–240V) 1 × Belt clip 1 × Hand strap1 × English manual Technical Specifications Dimensions: 115 x 60 x 37.5 mm Weight: 234 g Reception Frequencies: FM: 50–76 MHz / 76–108 MHz AM (Airband): 108–136 MHz VHF: 136–174 MHz UHF: 400–470 MHz / 470–600 MHz Fully supports 433 MHz reception Memory Channels: 200 Battery: 1600 mAh Li-Ion, rechargeable NOAA Weather Channels: 10 Charging: USB-C & desktop cradle Extras: flashlight, VOX, frequency counter, scrambler, replication Recommended Accessories for Fox Hunting 🦊 Draussenfuchs – 433 MHz Foxhunt Transmitter DIY Kit 📡 Yagi Antenna Kit – Optimized for 433 MHz Fox Hunting 🔌 Antenna cable for radio to external antenna 🔄 SMA to BNC adapter – ideal for antenna switching Note: This modified unit is receive-only. Transmitting is permanently disabled and the full functionality of the original radio is not available.

Coaxial Cable – BNC Male to SMA Male (1 m, 50 Ohm) This high-quality RF coaxial cable with BNC male to SMA male connectors is ideal for use in antennas, wireless LAN devices, external Wi-Fi radios, test setups and more.The coaxial cable is in conjunction with the coaxial adapter ideal for connecting the radio to the antenna for fox hunting. Specifications: Type: RG316 BNC male to SMA male Impedance: 50 Ohms Cable Length: 1 meter Contacts: Gold-plated Package Includes: 1 × RG316 Coaxial Cable – BNC male to SMA male This flexible and durable cable ensures precise signal transmission, even at high frequencies. A must-have for your RF, antenna, or measurement setup!

Coaxial Adapter – BNC Female to SMA Female (50 Ohm) This high-quality RF coaxial adapter converts a SMA male connector to a BNC male connector. Perfect for use in antenna systems, RF radios, CCTV setups, and testing equipment.The coaxial adapter in conjunction with the coaxial cable is ideal for connecting the radio to the antenna for fox hunting. Specifications: Type: SMA female to BNC female Style: Straight Impedance: 50 Ohms Length: 21 mm / 0.83 in Package Includes: 2 × RF Adapter – SMA female to BNC female A compact and reliable adapter to easily switch between different RF interfaces. Durable and easy to use for all your coaxial needs.