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FM Wireless Transmitter Module (+ Microphone)
$3.5100
In stock
SKU
COM-09-051
Volume discounts:
- +25 4 % $3.3700
- +100 6 % $3.3000
- +300 8 % $3.2300
- +500 10 % $3.1500
- +1000 12 % $3.0800
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UFL/IPX/IPEX to SMA/RPSMA Cable Previous 
FM Wireless Transmitter Module With Microphone is a compact FM band radio transmitter module for wireless audio transmission. It includes a built-in microphone and supports adjustable frequency operation from 88 to 108 MHz. The module can broadcast audio through standard FM radios. Frequency adjustment is done with a variable capacitor. It uses a 2 to 9 V DC supply and offers different output power levels across the voltage range.
Features of FM Wireless Transmitter Module With Microphone - 88 to 108 MHz
- Built-in microphone
- Adjustable FM frequency
- Variable capacitor tuning
- Compact PCB size
- Standard FM radio transmission
- Wide supply voltage range
Specifications of FM Wireless Transmitter Module With Microphone - 88 to 108 MHz
- Operating frequency range: 88 to 108 MHz
- Operating voltage: 2 to 9 V DC
- Current consumption: Approximately 9 mA at 3 V
- Transmission range: Up to 100 meters in open space, 10 to 30 meters indoors
- Frequency adjustment: Via variable capacitor
- Output impedance: 50 ohms
- PCB dimensions: 2 cm × 1 cm
- Audio input: Built-in microphone
- Connection ports: + (positive supply)
- Connection ports: - (negative supply)
- Connection ports: ANT (antenna)
- 9 V: 24 mA, 10.2 dBm
- 8 V: 21 mA, 9.5 dBm
- 7 V: 19 mA, 8.5 dBm
- 6 V: 17 mA, 7.1 dBm
- 5 V: 14 mA, 6.1 dBm
- 4 V: 12 mA, 4.5 dBm
- 3 V: 9 mA, 2.2 dBm
- 2 V: 6 mA, -1 dBm
- 1.5 V: 4.2 mA, -4 dBm
- 1 V: 2.4 mA, -9 dBm
- 0.7 V: 0.9 mA, -20 dBm
How to Use FM Wireless Transmitter Module With Microphone - 88 to 108 MHz
- Connect the supply to the + and - ports.
- Attach an antenna to the ANT port.
- Adjust the frequency with the variable capacitor.
- Receive the transmitted audio on an FM radio.
More Info
- Audio quality is intelligible.
- Not suitable for high-fidelity music broadcasting.
| Interface Type | Analog |
|---|---|
| Operating Voltage (V) | 2 to 9 V DC |
| Operating Current (mA) | 0.9 mA to 24 mA (depending on voltage); 9 mA at 3V |
| Dimensions (mm) | 20 x 10 mm |
| Mounting Type | Soldering |
| Wireless Protocol | FM |
| Frequency Band | 88 to 108 MHz |
| Encryption | None |
| RF Modulation | FM |
| TX Power (dBm) | -20 dBm to 10.2 dBm |
| Range (m) | 100m |
| SIM Slots | 0 |
| Input Voltage (V) | 2V-9V |
| Antenna Type | External Antenna |
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