Description
Micro-Power Medium Wave Transmitter Board Assembled For Testing Crystal Radio Domestic Use
Video For Radio Sound Performance:
http://v.youku.com/v_show/id_XNDQxNDk1NTEzMg==.html
Electrical Parameters:
- Power Supply: 9V2A DC, 5.5 interface, internal positive and external negative (power supply is not included)
- Transmitting Frequency: 530 ~ 1600KHZ (radio medium-wave band)
- High-Frequency Transmitting Power: About 500 mW for uses within 5 to 10 meters.
- Antenna: 5M 1.5 ~ 2.5 copper wire for home uses
- Audio Input: 3.5mm at both ends
- Audio Source: CD, desktop computer, mobile phone, etc.
- Application: Medium wave radio enthusiasts, for students to study the principle of wireless signal generation and modulation
1: Power Supply (9V. Internal positive & external negative)
2: Audio Input
3: Volume Adjustment
4: Adjust Frequency
5: Adjust Modulation Frequency
6: Antenna Terminal (5M cable for home radio)
Audio amplifier circuit outputs sufficient audio power to modulation circuit.
With collector modulation, this board features small distortion, adjustable amplitude, and excellent sound quality. It is suitable for radio enthusiasts and students' experiment.
Adjust 223 tuning capacitor to change frequency in the range of 530 ~ 1600KHz.
Use and experimental radio transmitters are subject to local radio regulations. Please adjust amplitude knob to minimize power.
Video For Radio Sound Performance:
http://v.youku.com/v_show/id_XNDQxNDk1NTEzMg==.html
Electrical Parameters:
- Power Supply: 9V2A DC, 5.5 interface, internal positive and external negative (power supply is not included)
- Transmitting Frequency: 530 ~ 1600KHZ (radio medium-wave band)
- High-Frequency Transmitting Power: About 500 mW for uses within 5 to 10 meters.
- Antenna: 5M 1.5 ~ 2.5 copper wire for home uses
- Audio Input: 3.5mm at both ends
- Audio Source: CD, desktop computer, mobile phone, etc.
- Application: Medium wave radio enthusiasts, for students to study the principle of wireless signal generation and modulation
1: Power Supply (9V. Internal positive & external negative)
2: Audio Input
3: Volume Adjustment
4: Adjust Frequency
5: Adjust Modulation Frequency
6: Antenna Terminal (5M cable for home radio)
Audio amplifier circuit outputs sufficient audio power to modulation circuit.
With collector modulation, this board features small distortion, adjustable amplitude, and excellent sound quality. It is suitable for radio enthusiasts and students' experiment.
Adjust 223 tuning capacitor to change frequency in the range of 530 ~ 1600KHz.
Use and experimental radio transmitters are subject to local radio regulations. Please adjust amplitude knob to minimize power.
Payment Terms
1.We accept PayPal only.
2.All major credit cards are accepted through secure payment processor PayPal.
3.Payment must be received within 7 business days of auction closing.
4.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.
2.All major credit cards are accepted through secure payment processor PayPal.
3.Payment must be received within 7 business days of auction closing.
4.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.
Shipping Terms
- For remote regions, we will charge your extra shipping costs. Usually it cost about 35USD-50USD. We will contact you after your payment. Thanks for your understanding.
Return Terms
1. If you receive defective item, please kindly notify us within 14 days. We will guide you the returning instruction for replacement or refund.
2. If you purchased in improper condition, please NOTE that the sipping and handling fee will not be refund, all return shipping fee should paid by the buyer unless item DOA.
3. We reserve the right to refuse any returns for objective reasons.
2. If you purchased in improper condition, please NOTE that the sipping and handling fee will not be refund, all return shipping fee should paid by the buyer unless item DOA.
3. We reserve the right to refuse any returns for objective reasons.
Custom Duties & Taxes
1. Import duties, taxes, and charges are not included in the item price or postage cost. These charges are the buyer's responsibility.
2. Avoiding some unnecessary trouble, please check with your country's customs office to inform us what we should declare its value before shipping.
2. Avoiding some unnecessary trouble, please check with your country's customs office to inform us what we should declare its value before shipping.
Feedback
1. If you are dissatisfied for any reason, please don't be quick to leave us neutral or negative feedback. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers.
2. If you are satisfied with the product you received, please kindly leave us a positive feedback and 5 star DSR. If there is any problem of your order, please feel free to contact us firstly, we are responsible and credible seller, will follow it for you asap.
2. If you are satisfied with the product you received, please kindly leave us a positive feedback and 5 star DSR. If there is any problem of your order, please feel free to contact us firstly, we are responsible and credible seller, will follow it for you asap.
