Unmanned Systems Technology 023 I Milrem Multiscope I Wireless charging I Logistics insight I InterGeo, CUAV London & USA show reports I VideoRay Defender I OS Engines GR400U-FI I Ultrabeam Hydrographic Ultra-2 I IMUs

50 A s geospatial industries and photogrammetry engineers continue their uptake of unmanned systems to meet their aerial and autonomous data capture requirements, InterGeo remains not only the largest trade fair in the world for geo-information technology but a vital nerve centre for exchanging information about unmanned vehicle technology. This year’s show saw 640 exhibitors explaining their wares to more than 19,000 visitors Tallysman unveiled a new helical GNSS antenna, the HC972. It comes in four versions, with options for dual-band, triple-band, and with L-band correction or without. It has been designed with broad bandwidth performance in mind, with the ability to track GPS L1/L2/L5, GLONASS G1/G2/G3, BeiDou B1/B2 and Galileo E1/E5 as well as L-band signals. “They also have pre-filters in them, unlike other antennas of this type,” commented Allen Crawford. “These are of real and growing importance – almost every customer we talk to mentions intermodulation, the LTE interferences and numerous other issues related to pre-filter engineering. “Without an integrated pre-filter, what can happen is that a strong terrestrial signal – either an intermodulatory or a near-frequency signal – will saturate the front end of the antenna, resulting in almost zero information being passed to the receiver.” By installing a pre-filter into the antenna, the HC972 mitigates these interference signals. “We’ve also worked to improve the axial ratio, up to 2 dB typically, meaning improved multi-path rejection over previous iterations and other antennas,” Crawford noted. Wingcopter has begun a large-scale BVLOS project in partnership with DHL to examine the potential for VTOL-transition systems in logistics operations. A number of Wingcopter UAVs, branded as DHL Parcelcopters, have been delivered to Tanzania as part of the project. “Flying 60 km beyond the visual line of sight with a payload of up to 4 kg is the current benchmark for commercial VTOL-transition UASs,” explained Ansgar Rory Jackson scours the aisles of this show for details about the latest game-changing projects and innovations on offer Ground breakers December/January 2019 | Unmanned Systems Technology InterGeo provides an essential forum for demonstrating and discussing unmanned systems for the geo-information sector