100MHz FM Transmitter Pickup Module – Wireless Audio Board V4.0

$5.97 $8.08

100MHz FM Transmitter Pickup Module – Wireless Audio Core Board V4.0

Turn any sound source into a wireless FM broadcast signal with this compact, ultra-low-power FM transmitter pickup module. Operating across the standard 88–108 MHz FM band, it converts audio captured by its onboard microphone into a clean FM radio signal receivable by any standard FM radio or FM-capable device. Perfect for electronics enthusiasts, DIY audio projects, and hobbyist builders.

Key Features

Adjustable Frequency (88–108 MHz): Fine-tune the transmission frequency using the onboard adjustable capacitor with a non-inductive screwdriver — default set to approximately 100 MHz.
Ultra-Wide Voltage Range (0.7V – 9V): Works with virtually any battery type — single AA dry cell, lithium, button cell, Ni-MH rechargeable, solar, or lead-acid batteries.
Remarkably Low Power Consumption: At 1.5V (single AA), current draw is just 4.2 mA. A 3000 mAh Ni-MH AA battery powers continuous operation for nearly 30 days.
Clean Signal Output: Spurious signal suppression reaches –60 dBc for a pure, interference-free FM transmission.
Full SMD Construction: All surface-mount components are machine-soldered for consistent, reliable performance — superior to conventional plug-in or hand-soldered designs.
Compact & Lightweight: Weighs just 30g, making it easy to integrate into portable or embedded projects.
Broad Compatibility: Receive the signal on any standard FM radio. (Note: mobile phones with earphone cables as antennas are not recommended as receivers due to limited sensitivity.)

Specifications

Default Frequency: ~100 MHz
Adjustable Frequency Range: 88–108 MHz (FM standard band)
Operating Voltage: 0.7V – 9V
Current at 0.7V: ~0.9 mA
Current at 1.5V (AA): ~4.2 mA
Signal Spurious Suppression: –60 dBc
Weight: 30g
Battery Included: No
Country of Origin: Made in China

What's in the Box

1 × FM Transmitter Pickup Module (Core Board V4.0)

Note: The product is continuously upgraded — appearance and color may vary from images. Please consider this before ordering if a specific color or appearance is required.

Frequently Asked Questions

Q: What frequency does this FM transmitter pickup module operate on?

A: The module is set to a default frequency of approximately 100 MHz and is adjustable across the standard 88–108 MHz FM band using the onboard adjustable capacitor and a non-inductive screwdriver.

Q: What kind of battery does the FM transmitter module require?

A: This module works with an extremely wide voltage range of 0.7V to 9V, meaning it is compatible with virtually any battery type — AA dry cells, lithium batteries, button cells, Ni-MH rechargeables, lead-acid batteries, and more. No battery is included.

Q: How do I receive the signal transmitted by this module?

A: Any standard FM radio can receive the signal broadcast by this module. Mobile phones with earphone cables used as antennas are not recommended due to their limited FM reception sensitivity.

Q: Is this FM transmitter module suitable for DIY electronics projects?

A: Absolutely. Its compact SMD construction, wide voltage compatibility, adjustable frequency, and ultra-low power draw make it ideal for DIY audio projects, wireless audio transmission experiments, and electronics hobbyist builds.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.