Fuhjythy QRM Canceller Eliminator X-Phase 1.8-30MHz HF Band PTT Control Finished Eliminator Board Built-in PTT Control

4. The QRM eliminator now allows adjustment of phase Angle and amplification to unwanted signals before they reach the receiver front end. 3. It is based on a completely innovative concept that cannot be compared to normal "" performance. 2. The QRM eliminator is inserted from the antenna feeder without any additional modifications to the radio. 1. The two antennas receive unwanted signals, resulting in different phases. 5. has a built-in PTT control that keeps the eliminator connected during transmission. However, additional auxiliary receiving antennas are required, such as a 2-meter antenna or a few meters of wire inside the shed.