The Linear DRQP is a one-channel gate receiver. These receivers work with 310 MHz Linear Delta3 and compatible 8 switch remotes. These receivers are 24 Vac/Vdc and can either draw power from the gate operator output or with a plug-in transformer. This receiver has a coaxial (F Style Connector) 9-inch whip antenna. The DRQP is an ideal addition to a gate or other automated door for higher sensitivity utilizing the F style whip antenna. Linear receivers are made with quality components and come with a one-year factory warranty.