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A Long March-2D carrier rocket, carrying the Gaofen-9 04 satellite, is launched from the Jiuquan Satellite Launch Center in northwest China, Aug. 6, 2020. China successfully launched a new optical remote-sensing satellite from the Jiuquan Satellite Launch Center at 12:01 p.m. Thursday (Beijing Time). (Photo by Wang Jiangbo/Xinhua) JIUQUAN, Aug. 6 (Xinhua) -- China successfully launched a new optical remote-sensing satellite from the Jiuquan Satellite Launch Center in northwest China at 12:01 p.m. Thursday (Beijing Time). The satellite, Gaofen-9 04, was sent into orbit by a Long March-2D carrier rocket. It has a resolution up to the sub-meter level. The satellite will be mainly used for land surveys, city planning, land right confirmation, road network design, crop yield estimation and disaster prevention and mitigation. It will also provide information for the development of the Belt and Road Initiative. The same carrier rocket also sent the Gravity & Atmosphere Scientific Satellite (Q-SAT) into space. The Q-SAT satellite, developed by Tsinghua University, will help with the satellite system design approach and orbital atmospheric density measurement, among others. Thursday's launch was the 342nd mission of the Long March rocket series. source: http://www.xinhuanet.com/english/2020-08/06/c_139269788.htm

It does really work. You probably missed one step or two during the process. One method you can do to check whether the file is NT or non-NT is by using GPSMapEdit, because it won't open NT format otherwise it will. Here I show you the snapshot when I try to open an NT format file in GPSMapEdit. Here is the same file with a non-NT format. OK, since I cannot edit my previous post, I am going to re-explain the procedures here. I enclose some snapshots for the clarity. Open the GMAP Tool Add the NT formatted img file/s (in my case, filename is 62320070.img) Go to Split tab and create subfiles. Click Split All. Download Garmin-GMP-extractor.exe tool and then put it in the same folder with your working files. Drag the GMP file into the Garmin GMP extractor tools. It will explod/extract the GMP fiel into five type of subfiles (.LBL, .NET, .NOD, .RGN and .TRE) Back to GMAPTool. Add those subfiles. Go to Join tab. Name the output file and directory. We can give mapset name. And the click Join all. FINALLY, the result is another img file with non-NT format. If you watch closely there is a slight difference of filesize between both files.