Features Durable Aluminum Alloy Design: The robust aluminum alloy shell ensures exceptional strength and wear resistance for a long-lasting performance Integrated PTT Control: Built-in Push-To-Talk control maintains a stable connection, allowing seamless communication during transmission Effortless Installation: Easily insert the signal canceller into the feedline without needing any modifications to your radio setup Adjustable Phase Control: Features a convenient dial and knob pointer for precise phase adjustments, optimizing signal clarity Enhanced Signal Management: Adjust both phase angle and gain to effectively cancel unwanted signals, improving receiver performance Features: 1、Aluminum alloy shell design, strong and wear resistant, can provide a long service life. 2、Built in PTT control can keep the connection status of the canceller during the transmission. 3、The QRM eliminator is inserted into the feedline without any additional modifications required to the radio. 4、The eliminator has a dial and a knob pointer, and the phase can be adjusted through the knob. 5、The QRM canceller allows adjustment of the phase angle and gain to cancel unwanted signals before they arrive at the front end of the receiver. Specification: Item Type: QRM Eliminator Material: Aluminum Alloy Principle: The QRM Eliminator is inserted into the feedline of the antenna without any additional modifications required to the radio. The box has a built in PTT control which enables the Eliminator to stay connected during transmit. An additional auxiliary receiving antenna is required, though, like a 2m antenna or simply a couple of meters wire in the shack. The unwanted signal is received with both antennas resulting in different phases. The QRM Eliminator now allows to adjust the phase angle as well as amplification in a way to cancel out the unwanted signal before it reaches the receiver front end! It's based on a totally innovative concept and cannot be compared to the normal "noise blanker" performance. Package List: 1 x QRM Eliminator 1 x 3P Power Control Line 1 x User Manual Note: There is a 0.5？1mm deviation between the dial and the knob pointer. Package List 1 x QRM Eliminator 1 x 3P Power Control Line 1 x User Manual