ATU-10 QRP Automatic Antenna Tuner by N7DDC

https://www.aliexpress.com/item/1005003234902647.html

Special feature:

Use real imported magnetic ring: T68-2

NOTE:Recommended maximum power while tuning not above 30 watts. (after tuning you can set 100 watts and work on this power)

SWR greater than 1.1 will automatically activate tuning, and the minimum power has been changed from 5W to 1W.

After modification, it can be tuned below 5W.Too low value may result in insufficiently fine tuning (original default is greater than 5W auto tuning), please know before placing an order.

Order guide

Type 1:
1. PCB motherboard x1. (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 x1


Shell 2:
1. Aluminum alloy shell x 1.(140x 88x 38mm L*W*H)
2. Front panel x1
3. 0.96 inch OLED screen x1
4. Power switch x1
5. Tune button x1
6. Auto button x1
7. Byp button x1
8. Rear panel x1 (including a DC5.5 x 2.1 female socket, please note that UHF connectors is not included)
9.UHF-KF female connectors * 2 (also named SO239/SL16/PL259)

Shell 3:
1. Aluminum alloy shell x1.(140x 88x 38mm L*W*H)
2. Front panel x1
3. 0.96 inch OLED screen x1
4. Power switch x1
5. Tune button x1
6. Auto button x1
7. Byp button x1
8. Rear panel x1
9. DC5.5 x 2.1 female socket x1
10. BNC connectors x2

The latest firmware version is 3.2

New in the version 3.2
1.Fixed bug with continuous data transfer to the display.

2.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.

3.Timeout for display reset increased to 2 seconds. This is required for some OLED displays with a very chain on the reset pin.

NOTE : The board has burned 3.2 program and SMT patch process

1.DIY kits, need to have welding ability.
2. NO need to burn-firmware.
3.SMT electronic components have been soldered.
4.Circuit schematic and firmware, please contact us.
5. With OLED.
6.Power switch button x 1

MINI 0.96 inch OLED ATU100 automatic antenna tuner 100W automatic day tuning kit parts

0.96 inch OLED automatic adjustment

1. The DIY kit requires welding capability;

2. The display is 0.96 inch OLED

3. Circuit schematic and firmware, please contact the store.

4. Weight: about 200 grams

5. Carton packaging size: 15*10*4CM



The main features of ATU-100 MINI 7x7 antenna automatic tuner:

It is at 1.8-50 MHz

Allowable power supply voltage range for operation at a frequency of 10-15 V DC

Maximum current consumption: 300 mA

Maximum working power: 100 watts

Maximum possible measured power: 150 watts
1 Watt: It is necessary to start setting the minimum power

Minimum possible measured power: 0,1 watt

Measurement steps with power up to 10W: 0,1 Watt

Powerful measurement steps 10 watts above

STI: 1 watt

Power measurement accuracy: 10%

Specified maximum inductance: 8,4 uH capacity

The minimum installation step of the inductor: 0.05μH

Maximum installation capacity: 1870 pF capacitor

Minimum installation step: 10 pF

The board has been burned 3.2program:

SMT patch process has been done on both sides of the board: