Feature:1. Automatic tuner, supports fixed errors, continuous data transmission to the screen.2. 0.96 inch for OLED display, timer screen disables all relays. The new cell 3501 activates Reforting.3. Configure display timer: Cell 32. Can be used in QRP configuration where energy consumption is of great importance.4. The waiting time for restarting screen is increased to 2 seconds, which is necessary for OLED screens with strings on the RESET pin.5. Automatic antenna tuner, with shell, easy to install and remove, stable performance, longterm use.Specification:Item Type: Automatic Antenna TunerMaterial: AlloyModel: ATU-100Display: 0.96in for OLEDMain Features:Working Frequency: 1.8-55 MHzPower Supply: 3.6V Lithium Battery 1350mAh (Built-In)USB Charging Current: 1AMaximum Working Power: 100WMaximum Possible Measured Power: 150W1W: It is necessary to start setting the minimum powerThe Smallest Possible Measurement Power: 0.1WMeasurement Procedure and Power to 10W: 0.1WTimely Powerful Measurement Steps STI above 10W: 1WPower Measurement Accuracy: 10%Specified Maximum Inductance: 8.4HMinimum Installation of Inductance: 0.05HMaximum Installed Capacity: 1870 PF CapacitorMinimum Installation: 10PFHow to Use: 1. Connect the radio-ATU antenna tuner-antenna2. When using for the first time, please set the output power of the radio or power amplifier between 20-30W, warning that high-power tuning may easily damage the antenna tuner.3. Set the radio mode, use FM mode4. Select the antenna frequency band to be used, use 20-30W power in FM mode, press the radio PPT, observe the ATU antenna tuner PWR and SWR5. The use of ATU button TUNE: Short press (less than 1 second) ATU button, it is in reset state, long press (more than 1 second) ATU button is in adjustment state6. If the SWR display of the ATU antenna tuner is greater than 2.0 in the transmission state, it means that the antenna has been detuned. You need to use an antenna tuner. Press and hold the ATU button TUNE to tune and observe the SWR value. If the SWR is greater than 3.0 after tuning, the antenna will be detuned. Seriously, it is not recommended to use a power above 30W, and the transmission power should be controlled below 30W; if the tuning is completed, the SWR display is less than 2.0, and the maximum power of 100W can be used for transmission.Package List:1 x Automatic Antenna Tuner1 x Manual