2019-02-18 02:22:53 +00:00
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# N7DDC ATU-100 mini board
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---
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2019-02-18 03:46:19 +00:00
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## The easy DIY 5x5 elements 100 Watt antenna tuner
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2019-02-18 03:24:53 +00:00
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![screenshot](http://www.sdr-deluxe.com/downloads/ATU-100_mini/mini_1.jpg)
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2019-02-18 03:46:19 +00:00
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2019-02-18 03:24:53 +00:00
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![screenshot](http://www.sdr-deluxe.com/downloads/ATU-100_mini/mini_2.jpg)
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2019-02-18 03:46:19 +00:00
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# N7DDC ATU-100 extended board
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---
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## The flexible tunable firmware for ATU from 5x5 to 7x7 elements, up to 1500 Watt prower
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## The autor's 7x7 elements 100 Watt version
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![screenshot](http://www.sdr-deluxe.com/downloads/ATU-100_mini/ext_1.jpg)
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![screenshot](http://www.sdr-deluxe.com/downloads/ATU-100_mini/ext_2.jpg)
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# 3D printed case for 0.91" OLED display, 3 buttons and TNC RF connectors
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![screenshot](http://www.sdr-deluxe.com/downloads/ATU-100_mini/case_1.jpg)
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![screenshot](http://www.sdr-deluxe.com/downloads/ATU-100_mini/case_2.jpg)
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![screenshot](http://www.sdr-deluxe.com/downloads/ATU-100_mini/case_3.jpg)
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## AS example 500 Watt ATU designed by
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