DSP PLL LCD Display FM Transmitter Receiver Module (87-108MHZ) Digital Wireless Microphone Stereo Input

DSP PLL LCD Display FM transmitter Receiver Module (87-108MHZ) digital wirele microphone stereo Input

describe:

100% and high quality

Material: electrical components

Color: see picture

Product :

1. Output power: 100mW

2. Audio frequency response range: 50Hz-18KHz

3. Transmiion frequency:

Turn off campus broadcast 87.0MHz-108.0MHz, turn on campus broadcast 76.0MHz-108.0MHz

4. Frequency adjustment step: 0.1MHz/time (short key pre), 1.0MHz/time (long key pre)

5. Modulation mode: standard FM frequency modulation

6. Channel: LINE/USB channel (stereo), MIC channel (mono)

7. Equivalent noise: ≥30dB (sound quality is close to CD sound quality)

8.Supply voltage: DC 3.0V-5.0V

9. Working current: 35mA

10. Transmitting : 75cm whip

11. Transmitting distance: The FM transmitter module is connected to a 75cm standard whip , and the radio uses Tecsun PL-660. The measured coverage radius of the open area is 100 meters. (Note: The launch distance is for reference only, and it may vary slightly due to different usage envments)

Features:

1: Use advanced digital audio signal proceing technology (DSP) and FM phase-locked loop modulation technology (PLL) to make the sound quality more realistic, the performance more stable, and the long-term working frequency has no deviation.

2: LCD display is more intuitive and accurate, with extremely low power consumption and minimal noise interference. To

3: Built-in 30-level digital volume adjustment, key operation can be easily completed.

4: Power off automatically memorize the volume and frequency information before power off

5: Multi-channel audio input automatic switching

6: High-precision quartz crystal is used to stabilize the frequency, and the emiion frequency will no longer drift when the temperature and voltage change

7: Support serial port command control

The package includes: 1x PLL LCD digital FM transmitter module 87-108MHZ wirele microphone stereo

Use introduction:

power supply :

1. The module has a Micro USB interface and can be powered by a computer USB.

2. The corresponding ports of the module (marked on the PCB)-and + are respectively connected to the negative and positive terminals of the power supply (battery). It is recommended to use a battery or other regulated power supply for the power supply. It is not recommended to use switching power supplies without filters (such as mobile phone chargers, mobile power supplies, and other switching power supplies), otherwise the interference generated by the power supply will affect the normal operation of this module. The normal working voltage of this module is 3.0-5.0V, and the power supply voltage should not exceed this range.

:

The FM_ANT port is used to connect an FM . In order to better receive FM signals, it is recommended to connect a 75cm-long whip .

To

Line input: You can use the 3.5mm standard audio plug to input the stereo sound signal. If no plug is inserted, the microphone signal will be automatically picked up (the microphone signal is on the left channel). USB audio signal input is also available.

Volume adjustment: Pre VOL— or VOL+ to adjust the volume, and the LCD screen displays the volume level.

Frequency adjustment: Pre VOL- or VOL+ to adjust the transmiion frequency, short pre +-0.1MHz, long pre +-1MHz, and the LCD screen displays the current frequency

Mute: Short pre the PAUSE on down to switch mute/non-mute

Connect to the serial port (no need for serial port control): The module reserves a TTL level serial port control interface. The communication between the TTL serial port and this module needs to be connected to the module's UART_RX, UART_TX and GND (the corresponding position on the PCB is marked), and an external MCU ( Single- microcomputer) or the computer serial port sends instructions to control the relevant functions of the module. For specific serial port commands, please refer to the document "FM Transmit AT Command List"

About shipping
Shipping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days ar buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties ores. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.