This antenna by Delock allows to use the TETRA BOS frequency range 380 - 410 MHz indoors and outdoors. Specification - Connector: M6 internal screw thread - Application: TETRA - Frequency range: 380 - 410 MHz - Antenna gain: 2.5 dBi - Impedance: 50 ?Ohm - VSWR: 2.4 - Polarisation: linear - Power handling: 50 W - Antenna type: rod antenna - Mounting type: screw mounting - Operating temperature: -30 °C ~ 70 °C - Length: ca. 52.2 cm System requirements - Antenna base with M6 external screw thread Package content - TETRA antenna Package - Poly bag https://elecena.pl/product/18596056/12438-tetra-bos-antenna-380-410-mhz-2-5-dbi-52-2-cm 2021-05-28 https://elecena.pl/product/18596056/12438-tetra-bos-antenna-380-410-mhz-2-5-dbi-52-2-cm 2022-06-29