Professional QRM Eliminator X-Phase Built-in PTT Control 1-30 MHz HF Band QRM Eliminator Aluminum Alloy QRM Canceller Radio QRM canceller is inserted from the into the feed line of the antenna without any other modifications to the radio. The box has built-in PTT controls, allowing the eliminator to stay connected during transfer. However, an additional auxiliary receiving antenna is required, such as a 2m antenna or just a few meters of wire in the shed. The two antennas pick up unwanted signals, causing them to be out of phase. The QRM canceller now allows adjustment of the phase angle as well as amplification to cancel unwanted signals before they reach the receiver front end. Feature: Improved Reception Quality: QRM Eliminator effectively reduces or eliminates artificial interference in the radio spectrum, enhancing the performances and signal quality of receiving devices. It reduces noise, distortion, and interference signals, making the desired signal clearer and more discernible. Wide Applicability: QRM canceller can be applied to various wireless communication systems and devices such as radios, TV broadcasts, radio receivers, remote control devices, and more. Easy Installation and Operation: QRM canceller eliminator feature simple installation and operation steps, allowing users to quickly set up and adjust parameters to adapt to different interference environments. Flexibility and Scalability: QRM eliminator provides flexible configuration options and expandable features to meet specific requirements in different scenarios. Enhanced Performances and Reliability: By reducing or eliminating interference, professional QRM eliminator enhances the performances and reliability of wireless communication systems, ensuring consistent and fine quality signal reception. Specifications: Main color: black Main material: aluminum alloy+epoxy fiberglass board Item size: 125 * 110 * 51mm / 4.9 * 4.5 * 2.0in Package size: 200 * 190 * 60mm / 7.9 * 7.5 * 2.4in Package weight: 635g / 1.4lb Packing List: 1 * QRM Eliminator 1 * PTT Wire 1 * FM Rod Antenna 1 * Power Cord 3 * F Adapter UHF/SL16-SMA _x000D_