DC2V-12V Miniature FM Transmitter Module 85MHz 115MHz Single-channel

Discover the DC2V-12V Miniature FM Transmitter Module 85MHz 115MHz Single-channel — a standout decor pick featuring adjustable, wireless, premium design for dependable, everyday performance.

Specifications

Brand Name: Aideepen

Condition: New

Type: Module

Product Features

1. Superior Quality: This module is the latest miniature surface-mount FM transmitter, manufactured using advanced PCB techniques. Its compact size allows easy installation inside items like pen barrels or lighters. The transmitted frequency is exceptionally stable, compatible with any radio receiver—particularly digital radios for optimal performance. All components utilize premium surface-mount devices from leading brands. Buyers can trust the quality; however, power supply and antenna connections require self-soldering.

2. Simple Design: The module's local oscillator circuit adopts the design from black-and-white TV tuner high-frequency heads, delivering exceptionally stable frequency—far surpassing ordinary capacitor-based three-point oscillator circuits. An integrated amplification and isolation circuit, combined with LC filtering and impedance matching circuits, effectively eliminates second and third harmonics. The spectrum remains exceptionally clean. My testing confirms this circuit operates stably up to 200MHz without frequency drift, even when holding the module's antenna by hand. The module's RF output impedance is 50 ohms, facilitating direct matching with power amplifiers and better serving DIY user needs!

3. Stable Performance: At 3V supply voltage, transmission distance reaches approximately 100 meters in open environments and around 20 meters in typical indoor settings. Higher voltages extend range—9V achieves roughly 300 meters. Antenna options include telescopic rods, standard wires, or thick enameled wires, with telescopic rods and thick enameled wires delivering superior performance. The antenna length is approximately 75 cm and must be fully extended during use. Shorter antennas are acceptable but will reduce transmission range. Transmission distances are provided for reference only; actual testing is recommended.

4. Wide Range of Applications

5. Compact Design

Product Specifications:

【Operating Voltage】DC 2V–12V (Model A)

(Battery power recommended. Stabilized power supplies may produce humming noise; frequency may slightly vary with voltage increase, but remains stable during prolonged operation with the same battery set.)

【Operating Current】9mA (tested at 3V; extremely power-efficient. Higher voltage → increased current → greater power → extended range)

【Transmission Range】100 meters in open areas (tested at 3V). Range decreases indoors through walls, with significant reduction through reinforced concrete walls. Increasing voltage substantially extends range.

【Operating Frequency】85MHz - 115MHz (default factory frequency typically ranges between 99.0-100.9 MHz)

【Reception Method】Standard FM radios can receive signals, as can mobile phones with FM functionality. Our store also offers two FM radio receiver modules. Apps using network data streams cannot receive signals.

【Frequency Adjustment】Micro-adjustable capacitor on the circuit board; use a small screwdriver to turn and adjust the frequency.

【Output Impedance】50 ohms

【Sensitivity】When the microphone is placed in a quiet 15-square-meter room, the ticking sound of a quartz clock's second hand is clearly audible.

Shipping List

1* Module

Frequently Asked Questions

Q: What is the DC2V-12V Miniature FM Transmitter Module 85MHz 115MHz?

A: The DC2V-12V Miniature FM Transmitter Module 85MHz 115MHz is a quality decor pick. Its compact size allows easy installation inside items like pen barrels or lighters.

Q: How do I use the DC2V-12V Miniature FM Transmitter Module 85MHz 115MHz?

A: The DC2V-12V Miniature FM Transmitter Module 85MHz 115MHz is ready to use right out of the box and makes an easy addition to your decor lineup.

Q: Why choose the DC2V-12V Miniature FM Transmitter Module 85MHz 115MHz?

A: The DC2V-12V Miniature FM Transmitter Module 85MHz 115MHz stands out in our decor range — The transmitted frequency is exceptionally stable, compatible with any radio receiver—particularly digital radios for optimal performance.