Radio Experimental Medium Wave Transmitter, AM Transmitter 530-1600KHZ

modname=ckeditor Ts: 1. This motherboard is only used by medium wave wirele lovers, which can test the effect of rock radio. 2. Spare parts: including the components and audio cables on the motherboard, the frequency points need to be adjusted by yourself. Finished board: usable when power on, including audio cable. The color of the board will vary depending on the production batch. The function remains unchanged. Radio sound effects:

http://v.youku.com/v_show/id_XNDQxNDk1NTEzMg==.html

Electrical parameters: Power supply: 9V2A DC, 5.5 interface, internal positive and external negative (need to bring your own power supply) Transmitting frequency: 530~1600KHZ (radio medium wave band) High-frequency transmiion power: adjustable 20 mW ~ 500 mW, adjustable power used within 5 ~ 10 meters. : Copper wire for 1.5~2.5 meters at home Audio input: 3.5mm at both ends, attached with board Audio source: CD, desktop computer, mobile phone, etc. Application: Medium wave radio enthusiasts, for students to study the princles of wirele signal generation and audio modulation of AM transmitters.

The audio amplifier circuit outputs enough audio power to the modulation circuit.

This board adopts collector modulation, has the characteristics of low distortion, adjustable amplitude, and superior sound quality; suitable for radio enthusiasts and student experiments.

Adjust the 223 tuning capacitor, the frequency can be changed between 530~1600KHZ; Debugging method of spare parts: turn the PVC counterclockwise to the end, adjust the PVC trimming capacitor to the angle shown in the figure, set the digital display radio to 530KHZ, fine-tune the midweek until the signal is received; then adjust the PVC clockwise to the end , Set the digital display radio to 1600KHZ, adjust the PVC trimming capacitor to 1600KHZ, and adjust it back and forth to set the radio to 5300~1600KHZ. It is similar to the method of adjusting the local oscillator of the whole transistor.

The use and experiment of radio transmitters must comply with local radio regulations, and adjust the amplitude knob to minimize the power.

About shping
Shping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

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