Description 868 MHz antenna HT250A H-TRONIC 1618115 868 MHz antenna stand magnetic 868 MHz antenna incl. stand magnetic SMA plug straight. Technical data: radio frequency: 868 MHz product dimensions, length: 250 mm. Other technical data: gain: 4.0 dB antenna connection: SMA male straight antenna cable: RG174. Cable length: approx. 5 m VSWR = 1.5 flexible including stand (magnetic). Colour: black. Box contents: 868 MHz antenna user manual.