Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si A Dummy Load is a device used to simulate an electrical load during testing. In an RF System a dummy load is used to simulate an antenna. By using a dummy load of an actual antenna, the transceiver can be tested and configured without radiating radio waves. The Dummy Load is in a way so it has a similar impedance to the real device will be connected to the RF System.Not using a dummy load and leaving the port open, can result in some unwanted reflections which can damage the RF System. Also, using a real antenna in the testing phase can result in some unwanted transmission in the lab which will interfere with other devices and technologies being tested. Warning: When the input is high than dummy , this is damage the dummy load Material:Plastic + Metal colour:black Package Contents: 1 x Dummy Load Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.