This high performance 900MHz Omni-directional "rubber-duck" antenna provides broad coverage and 5 dBi gain. It is a coaxial sleeve design with an Omni-directional pattern. It is ideally suited for 900MHz ISM band applications as well as cellular applications.Measuring almost 15.4 inches long, this flexible antenna features a RIGID connection to the Reverse Polarity SMA-Plug (RP-SMA) connector, permitting upright solid installations to the radio or Coax. It is suitable as a replacement RF antenna for many 900MHz radios that are equipped with RP-SMA connectors such as wireless video transmitters and receivers, 900MHz digital spread spectrum radios and more.