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ATU-10-10W-QRP-antenna-tuner
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David Fainitski 2022-12-27 14:01:22 -08:00 zatwierdzone przez GitHub
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### Official conversation group - https://groups.io/g/ATU100
### Schematic and assembly instruction by VK3PE - http://carnut.info/ATU_N7DDC/ATU-10/ATU-10_by-vk3pe_build_info/ATU-10_vk3pe_V1.2_ALL_INFO_290921.pdf
###### AON FW is always on
no automatic power off. Use button to power off after using to avoid discharging the battery.
###### New in FW version 1.6
1 - New better meassurement formula for Power and SWR calculation, compensation and calibration.
2 - Setting by Cells control implementation. There are 10 cells you can find opening a FW .hex file in Notepad++ program as Intel HEX file.
At the end by address EEE0 and EEF0 you can see them and change values. After changing any value you must to correct a checksumm for each
changed string. Copy the needed string into Checsumm.htm and get correct checksumm. It should be green coolor before you can save changed .hex FW file.
[![](https://github.com/Dfinitski/ATU-10-10W-QRP-antenna-tuner/blob/main/Photos/tuner_2.jpg)](https://github.com/Dfinitski/ATU-10-10W-QRP-antenna-tuner/blob/main/Photos/tuner_2.jpg)
Cells description:
1) Time to display off in minutes, 5 mins by default, 0 to always on display
2) time to power off in minutes, 30 mins by default, 0 to always power on
3) relay's delay time, voltage applied to coiles in ms, 7 ms by default
4) min power to start tuning in ten's parts of Watt, 10 by default (1.0 W). This value can not be 0
5) max power to start tuning in watts, 15 by default
6) Delta SWR to auto start tuning in ten's parts SWR, 13 by default (SWR = 1.3)
7) Auto mode 1 for activate or 0 to off. 1 by default
8) Calibration coefficient for 1W power, 4 by default for BAT41 diodes
9) calibration coefficient for 10W power, 14 by default for BAT41 diodes
10) Peak detector time for Power meassurement in tens ms, 60 (600ms)
If you are using 1N5711 diodes in the RF detector, you can calibrate the power meassurement.
Apply known 1W of power on 7MHz and change cell 8 for correct value.
Apply known 10W of power on 7MHw and change cell 9 for correct value.
Repeat it couple times to reach a good result.
###### New in FW version 1.5
1 - Tuning algorithm improvement