Description
- [ AM RADIO TRANSMITTER BOARD KIT] This transmitter board is designed for short radio experiments and tests, allowing users to understand the principle of AM modulation.
- [COMPREHENSIVE STRUCTURE] The board consists of power input, sound amplification, sound modulation, 21MHZ high frequency oscillation, class C high frequency amplification, and 21MHZ low pass filter.
- [MINIMIZE POWER SUPPLY INTERFERENCE] The professional AM radio transmitter board includes filter capacitors that reduce power supply interference ripples.
- [ACCURATE SOUND MODULATION] The secondary inductance sound voltage from transformer B1 is superimposed on the DC power, providing modulation voltage with the change of the sound source.
- [CRYSTAL FREQUENCY STABILIZATION] The 21MHZ high frequency oscillation is achieved with the parallel resonance of crystal Y1, offering stable and performance.
Spec:
Item Type: AM Radio Transmitter Board
Material: PCB
Power Supply: Voltage DC Power Supply 9V2A; The Whole Current 50 to 80mA
Frequency: 21MHZ Crystal Frequency Stabilization
Adjustment Amplitude: 45%
High Frequency Power: 100mW
Modulation: Transformer High Potential Modulation
Sound Source: External Sound Source, Available Cell Phones, MP3, Computers, etc.
Transmitting Distance: Better Than 10m/32.8ft
Production Difficulty: Welding, Without Debugging
Applicable: Radio Enthusiasts, Students Experimental Testing
Package List:
1 x AM Radio Transmitter Board
1 x Screw Package
1 x Instruction Manual
1 x Sound Cable
1 x Antenna