Finished Product R80 118-136MHz Aviation Band Receiver AM Airband Aviation Receiver High Sensitivity Aircraft Tower Call

Certification:NONE
Item Type:R80 118-136MHz Aviation Band Receiver AM Airband Aviation Receiver
Origin:CN(Origin)
Model Number:R80 118-136MHz Aviation Band Receiver AM Airband Aviation-001

R80 118-136MHz aviation frequency band receiver Aviation radio receiver PLL finished product, no need to assemble
Feature:
1. Using PIC18F1320 single-chip microcomputer as the main control, built-in PLL local oscillator module (pre-welded, poke hole plate, support calibration setting), and built-in frequency indicator circuit (using 7-segment digital tube, display unit is 100KHz, the photo has color difference, the actual is Red), the receiving frequency covers 118-136MHz, 100KHz or 10KHz steps (refer to the figure below, switching).
2. The kit uses bandpass filter + high amplifier + NE602 + MC3361 + TA7640 + LM386 to complete the secondary 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 the receiving frequency accurately and quickly, which is convenient for use.
4. It has a squelch circuit and ly set thresholds to ensure listening comfort and avoid long-term noise. At the same time, use the 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 greatly reduces the difficulty of amateur commissioning.
6. 12V power supply, the PCB board size is 8.4*12cm, which can be conveniently put into an 88*30*120mm aluminum case (the shop will customize the R80 case in the future).
Reminder: Because the VHF band is already similar to the propagation of light-linear propagation, the receiving location is from the airport but the distance is longer (more than 25Km), please be sure to install a high-gain antenna such as the VHF section Yagi antenna; between the receiving location and the airport If there are large obstacles (including but not limited to tall buildings, mountains, huge towers), you must avoid the obstacles; otherwise, you can only receive the one-way signal from the aircraft on the way in, thank you!