Wireless Microphone FM Transmitter DIY Kit (with Antenna)

The RF-01 FM Transmitter Kit is a simple and practical educational tool designed for hobbyists and students. With a frequency range starting from 70MHz, it fully covers various broadcasting systems, including Chinese campus radio, FM radio, and Japanese radio. The default shipping frequency is set around 70MHz, adjustable via the L1 component after assembly.

Kit Parameters:

1. Name: FM Transmitter Kit
2. Model: RF-01
3. Working Voltage:
   • 1.5V (2 x AAA batteries) or DC 3–6V
4. Current Consumption:
   • 5mA at 3V, 10mA at 6V
5. Frequency Range: 70MHz–110MHz (default set to 70MHz)
6. Transmission Distance: 5–30 meters (varies based on assembly quality and environment)
7. Antenna Length: Includes a 200mm flexible wire antenna
8. Sensitivity: Speech within 1 meter can be transmitted and received
9. Battery Holder: Includes a black plastic case
10. PCB Size: 49×13mm
11. Dimensions: 55×35×15mm
12. Assembly Instructions: Digital copy available upon purchase, including circuit diagrams
13. Kit Weight: 18 grams

Important Notes:

• The kit is simple in design, so the transmission frequency is susceptible to environmental factors. Touching or moving close to the circuit board, antenna, or casing may cause frequency changes.
• This product is ideal as a demonstration model for educational purposes but is not recommended for industrial or commercial use.

This kit offers an excellent introduction to FM transmission principles, providing a hands-on learning experience for DIY enthusiasts and students alike.