1.ATU-100 Shell Case Box: Size:140MM*88MM*38MM
(1)Shell 1:UHF
1. Aluminum alloy shell * 1(140 * 88 * 38mm L*W*H)
2. Front panel * 1
3. Rear panel *1 (including a DC5.5x 2.1 female socket, note that UHF connectors is not included)
4. 0.96 inch OLED screen * 1
5. Power switch *1
6. Tune button *1
7.UHF-KF female connectors * 2 (also named SO239/SL16/PL259)
(2)Shell 2:UHF
1. Aluminum alloy shell *1 (140*88*38mm L*W*H)
2. Front panel *1
3. Rear panel *1 (including a DC5.5*2.1 female socket)
4. 0.96 inch OLED screen *1
5. Power switch *1
6. Tune button *1
7. Auto button *1
8. Byp button *1
9.UHF-KF female connectors * 2 (also named SO239/SL16/PL259)
(3)Shell 3:BNC
1. Aluminum alloy shell *1(140*88*38mm L*W*H)
2. Front panel *1
3. Rear panel *1
4. 0.96 inch OLED screen *1
5. Power switch *1
6. Tune button *1
7. Auto button *1
8. Byp button *1
9. DC5.5*2.1 female socket *1
10. BNC connectors *2
(4)Shell 4:SMA
1. Aluminum alloy shell *1(140*88*38mm L*W*H)
2. Front panel *1
3. Rear panel *1
4. 0.96 inch OLED screen *1
5. Power switch *1
6. Tune button *1
7. Auto button *1
8. Byp button *1
9. DC5.5 *2.1 female socket *1
10.SMA connectors *2
（5）Effect reference chart：
1.SIZE: 140 x 88 x 38 mm (L*W*H)
If you need to buy the finished machine, please click the link:
//www.aliexpress.com/item/1005001804198586.html?spm=a2g0s.12269583.0.0.3ef54a959EzR4a
2.DIY kits include
1. PCB motherboard * 1 (SMD electronic components on the front and back have been soldered, and the latest version of the firmware has been burned)
2. Several plug-in electronic components and accessories(User welding is required)
3. 0.96 inch OLED screen * 1
NOTE:Recommended maximum power while tuning not above 30 watts. (after tuning you can set 100 watts and work on this power)
Description of firmware program and Accessories:
1.The latest firmware version is 3.2：
（1）SWR greater than 1.1 will automatically activate tuning, and the minimum power has been changed from 5W to 1W. 3.2 Program can be tuned below 5W. However, Too low value may result in insufficiently fine tuning (original default is greater than 5W auto tuning) , please know before placing an order.
（2）Fixed bug with continuous data transfer to the display.
（3）Added a new ability to disable all relays along with the timer display. New cell 35-01 to activate the refunction. Display Off Timer setup – cell 32.You can use this future in your QRP setup where power consumption is critical.
（4）Timeout for display reset increased to 2 seconds. This is required for some OLED displays with a very chain on the reset pin.
2. Accessories:
All use Samsung SMD capacitors, C-channel capacitors, we use Samsung 1000V high-voltage SMD capacitors (the original default uses 500V), and the PIC chip imported from the United States.
3.Parameter Description:
Power supply range: 10-15 VDC
Max current: 450mA
Max working power: 100 watts
Max measured power: 150 watts
Minimum power for tuning start: 1 watt
Recommended maximum power while tuning not above 30 watts. (after tuning you can set 100 watts and work on this power)
Minimum measured power: 0.1 watt
Step for measurement on powers under 10 watts: 0.1 watt
Step for measurement on powers above 10 watts: 1 watt
Power measurement accuracy: 10%
Maximum inductance set: 8.5 uH
Minimal step for setting inductance: 0.1 uH
Maximum installed capacity: 1870 pF
Minimal step for setting capacity: 10 pF
NOTE：
1.DIY kits need to have welding ability.
2. The firmware program has been burned.
3.SMT chip resistors have been soldered.
4.Circuit schematic and firmware, please contact us.
5.KIT of ATU (Automatic Antenna Tuner) developed by N7DDC
All information about project you can find on GitHub (N7DDC).
3.Assembled board：
1. A complete board * 1 (which has been assembled：including all components, boards and 3.2 firmware programs)
2.Flat cable * 1
3.OLED screen * 1
