The RF28SGH is a new, low cost RFSPACE WR-28 waveguide horn antenna. These antennas are built with Aluminum using Selective laser melting (SLM). Each antenna covers the 24 GHz to 40 GHz continuously with approximatelly 15dB of gain. Each antenna is individually tested. This is the ultimate broadband antenna for wideband SDRs. These antennas are great for the following applications: Radars Radio communications Signals and communications Intelligence (SIGINT, COMINT, ELINT) Broadband Software Defined Radio (SDR) Antenna EMC testing Spectrum analysis Direction finding