Feature

●[Filter Network] - L2, L3, C26, and C27 low pass networks filter out harmonic waveform to match the antenna
●[Sound Amplifier] - Equipped with R2, R3 sound source access resistor SW1 volume potentiometer and IC1 sound amplifier chip, improve sound quality
●[High Frequency Amplifiation] - Q1 high frequency amplification by Q2 C20 coupling capacity and B2 secondary output voltage
●[High Frequency Modulation] - Equipped with acoustic capacitors C22 and C23 for sound voltage adjustment and enhanced sound quality
●【Oscillation Source】 - Q1 base ground modulation transformer oscillation circuit generates high frequency and equal oscillation signals for accurate transmission


Description

[High Frequency Modulation] - Equipped with sound capacitors C22 and C23 for sound voltage adjustment and enhanced sound quality.
[Filter Network] - L2, L3, C26, and C27 low pass networks filter out harmonic waves, generate harmony. Sine wave matching antenna

Specifications:

Item Type: Wireless mid-wave transmitter kit.
Material: PCB
Power Supply: 9V2A DC, 5.5 interface, internal positive and external negative ) need to prepare your own power supply)
Transmission frequency: 530 – 1600 KHZ) radio medium wavelength)
HF Transmitting Power: Adjustable 20‑500 MW, adjust the power you use in 5-10 meters increments.
Antenna: Can be used for household wire with a diameter of 0.6 inch (1.5 mm) or 0.1 inch (2.5 mm) or 0.9 inch (2 - 5 meters).
Sound Input: 3.5mm at both ends, with board accessories
Sound source: CD, desktop computer, mobile phone, etc.
Suitable for: medium wave radio lovers, student wireless signal generation, AM transmitter sound modulation principle

Package List:
1 x Transmitter
1 x Screw Package
1 x User Manual
1 x Sound Cord

Note:
This motherboard is specially designed for medium wave radio lovers and is suitable for testing the radio effect of mineral stone.