b'Environmental geophysics the rains started again in early 2020 theantenna that is now mounted in front of work dried up and there was again time tothe vehicle (Figure 2). Instead of towing a work on commercialising the AgTEM cart.receiver by cable behind the cart, which Interestingly (frustratingly?), the processmakes the towed cart array very long, of moving from invention and productwith the towed receiver catching on development to commercial manufacturefence posts and gates and wearing out is proving to be both expensive and moredue to ground abrasion on gravel roads, difficult than the development steps. Partthe second Slingram receiver is now of the commercialisation process was tomounted ahead of the towing vehicle. design a cost-effective freight solutionWith the loop about 3 m off the ground for the system. Once this was completedit is relatively easy to manoeuvre through we airfreighted a system to the USA -gates and trees on narrow tracks while unfortunately right in the midst of thetowing the transmitter loop system.COVID freight crisis. The system is there, finally, and is undergoing field trials at theDevelopment of the AgTEM system has moment. been a long and arduous process, but the final versions are truly tried and tested, just And development continues: I havewaiting to be used in new environments, added a version of the Slingram receivingagricultural, geotechnical and mining.DECEMBER 2021 PREVIEW 48'