76-108MHz FM Stereo Radio DIY Kit Wireless FM Transmitter and Receiver Module Frequency Modulation Soldering Practice Project

is_customized : YesModel Number : 76-108MHz FM Stereo Radio DIY KitOperating Temperature : 1Dissipation Power : 1Supply Voltage : 1Condition : NewType : Voltage RegulatorBrand Name : AITEXM ROBOT : Mainland China 76-108MHz DIY Kit FM Radio Transmitter and Receiver Module Frequency Modulation Stereo Receiving PCB Circuit BoardDescription: 1. Model: RF-02FM2. Operating Current: 5-15mA3. Operating Voltage: DC 3-6V4. Transmission Distance: 5-50m5. Transmission Frequency: 88-108MHz6. Audio Input: -15dB (max)7. PCB Size: 53*40mm 76-108MHz FM Stereo Radio DIY Kit Wireless FM Receiver Module Frequency Modulation Electronics Soldering Practice Project DC 2.7V-3.3V Note: Please don't use 18650 battery, if not it will damage the item. Description: - The YFM-2 type radio circuit is very simple.- The total number of components does not exceed 19.- Although the number of components is not large, it includes two types of components: SMD and DIP which are suitable for novices and friends who want to practice soldering of SMD components. Features: 1>.Built-in digital automatic gain control (AGC) circuit2>.Support the global frequency band 76-108Mhz3>.DIY manual welding4>.Simple and easy to operate5>.Support radio memory function Parameter: 1>.Item name: FM Stereo Radio Module DIY Kit2>.Item Mode:YFM-23>.Work Voltage:DC 3V4>.Work Current:19mA5>.Work Frequency:76-108Mhz6>.Output impedance:32ohm7>.Work Temperature:-40℃~85℃8>.Work Humidity:0%~95%RH9>.Size(Installed):57*32*20mm Applicable: 1>.Training welding skills2>.Student school3>.DIY production4>.Project Design5>.Electronic competition6>.Graduation design7>.Crafts collection8>.Home decoration9>.Souvenir collection Installation Tips: 1>.User needs to prepare the welding tool at first.2>.Please be patient until the installation is complete.3>.The package is DIY kit.It need finish install by user.4>.The soldering iron can't touch the components for a time(1.0 second), otherwise it will damage the components.5>.Pay attention to the positive and negative of the components.6>.Strictly prohibit short circuit.7>.Install complex components preferentially.8>.Make sure all components are in right direction and right place.9>.It is strongly recommended to read the installation manual before starting installation!!! Installation Steps(Please be patient install!!!): 1>.Step 1: Install 1pcs SOP-16 RDA5807PF at U1.There is a dot on one corner of the IC and there is a rectangle pad on PCB where the Pin1 of IC can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC.2>.Step 2: Install 1pcs 30K ohm Resistor at R1.3>.Step 3: Install 1pcs 0.1uH Inductor at L1.4>.Step 4: Install 2pcs 1uH Inductor at L2,L3.5>.Step 5: Install 1pcs 32.768KHz Crystal Oscillator at Y1.6>.Step 6: Install 1pcs 24pF Ceramic Capacitor at C1.7>.Step 7: Install 1pcs 0.01pF(103) Ceramic Capacitor at C2.8>.Step 8: Install 1pcs 0.022pF(223) Ceramic Capacitor at C3.9>.Step 9: Install 5pcs 6*6*5mm Switch at S1-S5.10>.Step 10: Install 1pcs 100uF 16V Electrolytic Capacitor at C4,C5. Please pay attention to the positive and negative poles. The shorter pin is the negative pole.11>.Step 11: Install 1pcs 3.5mm Audio Jack at J1.12>.Step 12: Connect battery box.Pay attention to positive and negative.13>.Step 13: Use a cable tie to fasten the battery box.14>.Step 14: Connect to power supply and enjoy the effect.