Features: new and Say goodbye to unwanted signals with our 1~30 MHz High-Frequency Noise Canceller Board the ultimate solution for crystal-clear radio communication. Made of high- plastic, our noise canceller board eliminates QRM from your TRX to antenna feeder without any additional modifications to your radio. It comes with a built-in PTT control that keeps the connection active during transmission. Our product is perfect for amateur radio enthusiasts, HAM radio operators, and anyone who needs to eliminate unwanted signals from their radio communication. Whether youre broadcasting from your home or out in the field, this noise canceller board is a must-have. Its ideal for use in areas with high levels of interference, such as urban environments or areas near power lines. With its innovative design and easy installation process, our noise canceller board will revolutionize the way you communicate over the airwaves. Keywords: radio communication, noise canceller, QRM eliminator. Specifications: Material: Plastic PCB :73x85x1.6mm Note: Please allow little errors due to manual measurement. Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Package includes: 1 X QRM Eliminator