Introduction:

ST-7C FM stereo transmitter can be used for factories, schools, supermarkets, farms, Office space or create your own radio station.
ST-7C using advanced modulation system and built-in PLL frequency, audio pre-emphasis, limiter, and low-pass filter circuit.

Specification:

Power input interface DC2.1
Phase Lock Loop (PLL) System
Easily choose your frequency LCD and buttons
Freq range :76MHz~108MHz
RF output impedance: 50 Ohm (BNC Type antenna output)
RF output power:1W/7W (Power can be switched)
Reference range: 5 Km - 10Km (A barrier-free environment)
Ripple or harmonic waves: <= -60dB
SNR: More than 60dB
Tuning Step : 100khz
Stability of Frequency: ±5ppm Less than 10ppm ( better system)
Freq. Response: -55dB(100~5000Hz); -45dB(5000 ~ 15000Hz )
Audio Input Connector: 3.5mm headphone connector
Microphone jack; it can be connected wih the microphone
Stereo channels crosstalk: -50dB
Audio frequency response: 20 to 15000Hz
Audio distortion: Less than 2%
Modulation: 15%
Power supply voltage: DC 12V3A/DC12V4A

Unit dimensions: 128mm(L) * 93mm(W) * 55mm(H)

Note:
* Connect antenna first ,then connect the power supply, otherwise, transmitter will be burned out.
* Select an unused FM station in your area.
* Packing not included power supply and Antenna.

                                     Packing included:

                                      1XST-7C    FM Transmitter

                                        1Xsmall antenna

NOTE:1pcs ST-7C FM transmitter and 1pcs small antenna and free shipping ,Do not including power supply.