76.0MHz-108.0MHz LCD Display FM digital radio soldering kit

The FM digital radio kit uses advanced digital audio signal processing technology (DSP) and FM phase-locked loop modulation technology (PLL) to make the sound quality more realistic, the performance more stable, and the working frequency is unbiased for a long time.The mobile reception signal is good, and about 22 stations can be received locally. The built-in high-definition LCD display can clearly display the receiving frequency. Small size, light weight, easy to carry. Convenient to use in any DIY project, suitable for home, school and work. Kit parameters: Support speakers: within 8 ohms and 5W Output power: 5W Frequency range: 50Hz-18KHz Sound channel: monophonic with speakers, dual-channel with earphones. Ordinary stereo headphones with a diameter of 3.5mm can be used, but if you buy one with a shell, you need to pay attention: the diameter of the headphone handle must be less than 7mm! Otherwise, it will not be inserted. Receiving frequency adjustment range: turn off the campus radio 87.0MHz-108.0MHz, turn on the campus radio 76.0MHz-108.0MHz Equivalent noise: ≥30dB Supply voltage: 3.0V-5.0V Battery model: 18650 Package battery capacity: 1000MAH, it can be used for about 7-8 hours when fully charged. PCB circuit board size: 63*44mm Acrylic shell size: 114*97*31mm   Features of the kit: 1. Use advanced digital audio signal processing technology (DSP) and FM phase-locked loop modulation technology (PLL) to make the sound quality more realistic and the performance more stable 2. LCD display is more intuitive and accurate, with very low power consumption and little noise interference. 3. It has the functions of automatically searching for radio stations and storing radio stations, and is easy to operate and use. 4. Built-in 30-level digital volume adjustment, which can be easily completed by key operation. 5. Automatically remember the data before the power outage. 6. Quartz crystal is used to stabilize the frequency, and the emission frequency will no longer drift when the temperature changes. 7. The whole frequency band (76-108MHZ) automatically searches the signal frequency band and stores it in memory. 8. Built-in rechargeable lithium battery and charging circuit, you can charge it with a mobile phone charger. The red light will turn on when charging and the green light will turn on when full. Instructions: 1. After each module is completed, it will automatically search for channels. Long press “Automatic search (AUTO key)” to start automatic search and storage of radio stations that can be listened to. After the search is completed, the first radio station P01 will be played automatically. Users can press the “Previous Radio” or “Next Radio” button to switch to the searched radio station. 2. This module can set the backlight status and whether to listen to the campus radio frequency band according to the user’s specific usage. The setting method is as follows: *Press and hold the VOL VOL- keys in the power-off state and then turn on the power. The LCD displays C1 to turn on the campus broadcast CO. Indicates that the campus broadcast band is turned off, and the setting will take effect after restarting. *To set the backlight status, press and hold the up and down radio buttons at the same time to turn on the device when the power is off. B1 is displayed to indicate that the backlight is always on, and B0 indicates that the backlight will be turned off for 20 seconds. The setting will take effect after restarting. To change the setting state repeat this step to toggle. The factory setting is to disable the campus radio frequency band and the backlight will turn off after 20 seconds without operation.