Best FM Transmitter for Broadcasting High Power & Long Range

7-Watt FM Transmitter

Specifications

Overview

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Best FM Transmitter for Broadcasting

Features of the 7-Watt FM Transmitter

• Digital Stereo Powered and Portable:
  Fully assembled and tested, including all components and circuit boards inside a box.
• Included Items:
  • 8GB SD card with preloaded songs (only in the 7-watt version).
  • BNC connector, antenna key items, and audio cable.
  • Volt, 2/5A SMPS power supply with DC pin (included).

Control Panel

• Dimensions: 58 x 36 mm.
• Features: Dot matrix LCD display with 3 key buttons to adjust frequency, volume, and transmitting power.

Range and Distance

• 7 Watts with Yagi Antenna: Up to 14 KM in free air.
• With Dipole Antenna: Up to 10 KM (guaranteed if the manufacturer’s dipole is used).
• Note: Antennas are optional and come at extra cost.

Key Features

1. Stable Frequency: Digital technology ensures frequency stability, with no drift due to environmental changes.
2. Adjustable Frequency: Frequency can be digitally set within the specified range.
3. Integrated Micro SD Socket:
   • Holds up to 8GB or more for thousands of MP3 songs.
   • No need for external audio feed via aux.
4. Microphone Input: Supports stereo transmission with up to 2 mics, adjustable via digital potentiometer.
5. Auxiliary Input: Audio input through aux with adjustable volume via a digital potentiometer.
6. Adjustable Transmitting Power: From 0.5 W to 7 W, continuously adjustable to change the range.
7. Clean Output Spectrum: Harmonic suppression ensures a cleaner transmission spectrum.
8. Memory Function: Retains frequency and power settings after reboot.

Main Parameters

1. Input Voltage: DC 12V.
2. Microphone Support: Compatible with condenser microphones.
3. Aux Input Signal: Maximum input Vpp less than 1V.
4. Output Power: 0.5W – 7W, continuously adjustable.
5. Output Impedance: 50 Ω (antenna).
6. Frequency Range: 76 MHz – 108 MHz.
7. Frequency Adjustment Step: 0.1 MHz.
8. Distortion Level: 0.03% – 0.1%.

FAQ: Coverage

How Far Will the Transmitter Cover?

The range depends on:

• Antenna Height: Higher placement increases range.
• Antenna Gain: Directional Yagi antennas provide better coverage.
• Environment: Obstructions like buildings reduce the range.

Example:

• City and Village Use: Tested with a car FM radio, the transmitter provides clear sound with no hissing.
• Antenna Recommendations: Use a directional Yagi antenna or dipole/folded dipole for best results.

Package Includes

1. 7-Watt FM stereo transmitter in a white acrylic box with LCD screen and adjustment buttons.
2. Mic (optional).
3. One aux cord.
4. Two BNC connectors for the antenna.
5. 8GB SD card with preloaded songs.
6. Complete FD antenna with base unit (optional).
7. RG58 copper coaxial cable (optional).
8. Circuit diagram (provided by the manufacturer).
9. Operating manual (English).
10. SMPS DC supply adapter (12V, 2/5/10A).

Disclaimer

Important:
Any FM transmitter with power output exceeding 0.1 watts (100 mW) requires a government license for legal operation. The manufacturer is not responsible for unlicensed use.