RDA5807 FM Radio DIY Kit – 3W Speaker, 50–108MHz Receiver
RDA5807 FM Radio DIY Kit – 3W Speaker, 50–108MHz Receiver
Build Your Own FM Radio – RDA5807 DIY Electronic Kit
Take your electronics skills to the next level with the LOTHYE RDA5807 FM Radio Production Kit. This hands-on DIY kit includes all the loose parts and a transparent plastic shell to assemble a fully functional FM stereo radio receiver. Perfect for electronics enthusiasts, students, hobbyists, and anyone who loves building their own gadgets from scratch. Made in Mainland China.
⚠ Please Note: This kit is intended for buyers with prior circuit assembly experience. While all components are verified in good condition before shipping, successful assembly depends on the builder's skill level. Please read all instructions carefully before purchase. Batteries are not included.
Key Features
- RDA5807FP Chip: Latest-generation single-chip broadcast FM stereo radio tuner with fully integrated synthesizer, intermediate frequency selectivity, RDS/RBDS, and MPX decoder. Supports CMOS technology with minimal external components required.
- 8002D Power Amplifier: Class AB, single-channel bridge audio amplifier delivering up to 3W output (4Ω load at 5V/1KHz). Total harmonic distortion <1% across the full audio range (20Hz–20KHz). Features built-in overheating auto-shutdown protection for safe operation.
- Wide FM Reception Range: Scans and receives FM stations from 50MHz to 108MHz, with signal-to-noise ratio >60dB and sensitivity <10uV.
- 3W Speaker Included: 1.5-inch, 4Ω, 3W speaker (outer diameter 40mm) for clear, quality audio output.
- Frequency Display: Digital display shows the current radio frequency for easy tuning.
- Headphone Jack: Insert headphones (not included) to enjoy private listening.
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Two Power Options:
- Without Charging Module: Powered by 3 × AAA batteries (self-provided).
- With Charging Module: Includes charging module and charging cable for rechargeable 3.7V lithium battery (self-provided).
- Transparent Shell: Showcases your build with a sleek, transparent plastic enclosure and double-sided epoxy circuit board.
Technical Specifications
| Model | G123 |
| Control Chip | RDA5807 + 8002D (STC81K17) |
| Search Range | 50–108 MHz |
| Signal-to-Noise Ratio | >60dB |
| Sensitivity | <10uV |
| Frequency Response | 150Hz–20KHz |
| Speaker | 1.5-inch, 4Ω, 3W (40mm outer diameter) |
| Power Supply | 3 × AAA batteries or 3.7V lithium (not included) |
| Product Size | 115 × 70 × 28mm |
| Packaging Size | 150 × 110 × 29mm |
| Shell Material | Transparent plastic / Double-sided epoxy PCB |
| Origin | Made in Mainland China |
How to Use
- Power On/Off: Insert batteries with contacts facing up (battery version) or connect charging battery downward (charging version).
- Auto Channel Search: Press and hold the search button for 2–3 seconds, then release. Channels are stored automatically as P01, P02, etc.
- Channel Selection: Use CH– / CH+ buttons to navigate stored channels. The display shows the corresponding FM frequency.
- Volume Control: Press V– to lower, V+ to raise volume. L00 = mute; L01–L16 = minimum to maximum volume.
- Headphone Use: Plug headphones into the headphone jack for personal listening (headphones not included).
- Antenna Tip: Extend the antenna fully and orient it for best reception. In areas with dense buildings or remote locations, fewer stations may be available.
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Frequently Asked Questions
Q: Is the RDA5807 FM Radio Kit suitable for beginners with no electronics experience?
A: This DIY FM radio kit is designed for electronics enthusiasts who already have some experience with circuit assembly and soldering. While all components arrive in verified good condition, successful assembly requires familiarity with circuit boards. Beginners are encouraged to study basic electronics before attempting this build.
Q: What batteries does the RDA5807 FM Radio DIY Kit require?
A: The standard version (without charging module) requires 3 × AAA batteries, which are not included. The version with a charging module is compatible with a 3.7V lithium rechargeable battery (also not included) and comes with a charging cable for convenient recharging.
Q: What FM frequency range does this DIY radio kit cover?
A: This kit covers a wide FM reception range of 50MHz to 108MHz, making it capable of picking up most standard FM broadcast stations. Reception quality depends on your antenna orientation and local signal strength.
Q: Does the kit include a speaker and antenna?
A: Yes! The kit includes a 1.5-inch 4Ω 3W speaker and an antenna as part of the loose parts shipment. It also includes the transparent plastic shell and double-sided epoxy circuit board. Headphones and batteries are not included.