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Short Low Power AM Radio Transmitter Board, Sound Amplification SW Radio Amplifier Kit for DIY Campus Broadcast with 21MHZ Crystal Frequency Stabilization

KWD 16.500
Brand
Cuifati
Category
Home Theater
Weight
301 g
All electronics ship with US style plugs. You may need a voltage converter or a plug adapter.
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Special Features

  • [ AM RADIO TRANSMITTER BOARD KIT] This transmitter board is designed for short wave 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 reliable performance.

Description

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

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