Draussenfuchs 433 MHz Foxhunt Transmitter – License-Free DIY Kit

The fully assembled Draussenfuchs transmitter kit with battery pack

All components of the Draussenfuch transmitter kit at a glance

A detailed view of the Draussenfuchs transmitter with ESP32 transmitter module and Step-UP module

€17.99*

Prices incl. VAT plus shipping costs

Available, delivery time: 1-3 days

Product number: blink23151

Product information "Draussenfuchs 433 MHz Foxhunt Transmitter – License-Free DIY Kit"

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.

Build Time:	1-2 Hours
Difficulty:	Medium
Manual and iteractive board:	https://binary-kitchen.github.io/SolderingTutorial/
Target group:	Citizens band radio (CB), Radio Operator (HAM)

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Draussenfuchs 433 MHz Foxhunt Transmitter – License-Free DIY Kit

Product information "Draussenfuchs 433 MHz Foxhunt Transmitter – License-Free DIY Kit"