RadioMaster IPEX1 2 4GHz Sub G 900MHz Dual Band T Antenna for Xrossband Gem X ReceiversDual Band T style antenna for Xrossband Gem X Receivers working on both 2 4GHz and Sub G 900MHz bands for seamless switching between bands or for use on ELRS X modes Specification Brand RadioMasterItem Dual Band T AntennaFrequency Range 2 4GHz Sub G 900MHzImpedance 50ΩConnector IPEX1Dimensions 155 120MMWeight 3gFeature For Xrossband Gem X receivers For both 2 4GHz and Sub G 900MHz bands Easy Mounting with an integrated zip tie mounting groove Package included 1x Dual Band T Antenna