Dual band cellular antenna. 3dB gain. This antenna covers digital, analog and PCS cell phone bands. A brass choking sleeve eliminates pattern distortion due to cable radiation. Use a CPA series adapter to connect your portable cell phone. Brass and copper elements, stainless steel ferrule w/ standard 1"-14 thread, includes 25' of Lo-max low-loss cable and a "TNC" connector. Suggested mount: 4187.