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R80 118-136MHz Air Band Receiver Aviation Radio Receiver PLL Double Frequency*

Description: Description R80 118-136MHz Air Band Receiver Aviation Radio Receiver PLL Double Frequency Conversion Assembled Description: R80 aviation band PLL receiver features high-performance double conversion circuit architecture. It is dedicated to receiving calls between airplanes and towers. Used with a good antenna (VHF section Yagi antenna), it can receive calls between various types of airplanes and towers within a maximum distance of about 150Km. Features: 1. Use PIC18F1320 MCU as main control, built-in PLL local oscillator module (pre-welded, stamp hole plate, support calibration setting), built-in frequency indicating circuit (using 7-segment digital tube, display unit is 100KHz), receiving frequency coverage 118-136MHz, 100KHz or 10KHz stepping (free switching). 2. Adopts bandpass filter + high amplifier + NE602+MC3361+TA7640+LM386 to complete secondary frequency conversion, one intermediate frequency 10.7MHz, two intermediate frequency 455KHz, ultra-high sensitivity, can receive 118-136MHz AM signal. 3. With LED tuning indicator function, it can help to adjust receiving frequency accurately and quickly, which is convenient to use. 4. It has a squelch circuit and freely set thresholds to ensure comfortable listening and avoid long-term noise. At the same time, use audio dedicated digital potentiometer (FM62429) to adjust the squelch threshold and volume. 5. The first and second intermediate frequency circuits all use ceramic filters, which makes it easier for amateur debugging. 6. 12V power supply, PCB board size is 8.4*12cm, which can be easily put into an 88*30*120mm aluminum case (our shop will customize R80 case in the future). Attention: - Because the VHF band is already similar to the propagation of light ---- straight line propagation, the receiving location is free from the airport but the distance is longer (more than 25Km), please be sure to install a high-gain antenna such as a VHF section Yagi antenna. If there are large obstacles (including but not limited to tall buildings, mountains, giant towers) between the receiving location and the airport, you must avoid the obstacles; otherwise, you can only receive one-way signal from the aircraft on its approach, thank you! Main Indicators: - Power supply: 12V (linear regulated power supply or battery is recommended) - Antenna: 50 ohms, unbalanced - Typical receiving current: 90mA - Receiving frequency: covering 118MHz-136MHz - Working mode: AM Package Included: - 1 x Board - 1 x Antenna - 1 x Power Adapter Note: - It is assembled and ready to use. - Battery is not included. 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. 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. 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. 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. On Apr-20-21 at 19:44:04 PDT, seller added the following information:

Price: 57.1 USD

Location: Shenzhen

End Time: 2024-01-21T03:31:04.000Z

Shipping Cost: 3.99 USD

Product Images

R80 118-136MHz Air Band Receiver Aviation Radio Receiver PLL Double Frequency*R80 118-136MHz Air Band Receiver Aviation Radio Receiver PLL Double Frequency*R80 118-136MHz Air Band Receiver Aviation Radio Receiver PLL Double Frequency*R80 118-136MHz Air Band Receiver Aviation Radio Receiver PLL Double Frequency*R80 118-136MHz Air Band Receiver Aviation Radio Receiver PLL Double Frequency*R80 118-136MHz Air Band Receiver Aviation Radio Receiver PLL Double Frequency*R80 118-136MHz Air Band Receiver Aviation Radio Receiver PLL Double Frequency*

Item Specifics

Restocking Fee: No

Return shipping will be paid by: Seller

All returns accepted: Returns Accepted

Item must be returned within: 30 Days

Refund will be given as: Money back or replacement (buyer's choice)

Return policy details:

Model: R80

Type: Radio Receiver

Color: Green

MPN: Does not apply

Brand: Unbranded

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