Radio Circuit Board, MW207 DIY Medium Wave AM Radio Transmitter Circuit Board Kit for Electronics Hobby Learning Project

• 【SIMPLE CIRCUITRY DESIGN】: This Radio Circuit Board utilizes common transistors and RC sensing elements to eliminate audio , making the MW207 DIY Medium Wave AM Radio Transmitter Circuit Board Kit for Electronics Hobby Learning Project easy to manufacture and assemble for beginners.
• 【SUPERIOR SOUND QUALITY】: Experience high signal-to-noise ratio audio that rivals FM radios within rated distances, especially when receiving through repeaters, as this radio motherboard delivers clear modulation signals indistinguishable from direct playback sources for your projects.
• 【NO EXTERNAL ANTENNA】: Operate without lengthy wires since the receiver reacts to magnetic fields leaking from the ferrite rod, allowing relatively short transmission distances while simplifying setup for your Medium wave AM modulation experiments and educational demonstrations effectively.
• 【VERSATILE INTERFACES】: Multiple connection points including waveform test terminals, audio jacks, and external power sockets facilitate functional expansion, letting you connect mobile phones or players via the 3.5mm cable for broad compatibility with various signal sources easily.
• 【FLEXIBLE POWER OPTIONS】: Connect an external 6V DC power supply or use batteries independently with the included connector, providing convenient for your electronics hobby learning project while supporting continuous operation during testing and development for SESSIONS reliably.

Features: 1. Simple circuitry. Utilizes only common transistors and RC sensing elements, eliminating the need for an audio transformer and making it easy to manufacture. 2. Excellent sound quality. Within the rated transmission distance, the sound quality is close to that of an FM radio, with a high signal-to-noise ratio, especially when receiving through a repeater, where the effect is almost indistinguishable from directly playing the modulated signal. 3. No external antenna required (medium wave requires tens of meters). The receiver is entirely affected by the magnetic field leaking from the ferrite rod, making it easy to implement and allowing for relatively short transmission distances. 4. Multiple interfaces, including waveform test terminals, audio jacks, and external power sockets, facilitating use and functional expansion. 5. Can be connected to an external power source or used independently with batteries. Specifications: Product Name: Module Material: PCB, ABS Color: White size: 78mm x 85mm (Length x Width) Power Supply Voltage: 6V DC; Power Interface: 5.5 * 2.1mm; Transmission Distance: Approximately 1 meter for superheterodyne AM radios, approximately 0.5 meters for direct-fire and mineral radios; Instructions for Use: 1. insertan external 6V DC power supply (positive inside, negative outside) into the CZ1 socket on the circuit board, or insertan the 6V for battery connector into the for battery interface. Do not connect the reverse polarity. 2. insert the signal cable into the CZ2 socket on the circuit board and connect it to the modulation signal source. The signal source can be a mobile phone, player, etc. A player is recommended because mobile phones for can cause strong to AM radios. 3. Rotate the potentiometer knob to turn on the device; its function is similar to the volume potentiometer on a radio. 4. Turn on the radio and search for the transmitter's signal to listen. You can also do the reverse: tune the radio to a position where there are no stations, then rotate the transmitter knob to change the transmission for frequency until the radio plays the transmitter's signal. Package Contents: 1 * Module 1 * 3.5mm Headphone Cable