ATU-100 Assembled Automatic Antenna Tuner EXT 1.8-55Mhz 100W Shortwave Portable Metal Material OLED Display Automatic Tuner ( Item#: E25991 )

Features:
The antenna tuner automatically tunes without any control wires and works with most radio stations.
The automatic antenna tuner is assembled. Using metal materail, the performances is stable.
More professional, more stable, and nice performances. The device consists of a set of seven capacitors and seven inductors, making it (maximum configuration) effective in the 1.8-55 MHz wideband amateur radio HFband.
Compact size, made of fine quality material, M block, OLED display, long lifespan.

Specifications:
Main color: black
Screen size: 0.96in
Working frequency: 1.8-55MHz
USB Recharging current: 1A
Battery: 3.7V, 2000mAh
Working power: max. 100W
Maximum measured power: 150W
Minimum measured power: 0.1W
Measurement procedure with power upto 10W: 0.1W
Hourly powerful measurement step 10W above STI: 1W
Power measurement accuracy: 10%
Specified maximum inductance: 8,4 uH
Minimum installation step length of inductance: 0.05μH
Maximum installed capacity: 1870 pF capacitor
Minimum installation step length: 10
Package size: 150 * 100 * 40mm / 5.9 * 3.9 * 1.6in
Package weight: 300g / 10.6ounce

Instructions:
1. Connect the radio----ATU antenna tuner----antenna
2. For the first use, please set the output power of the radio or power amplifier between 20-30W, warning that high-power tuning can easily damage the antenna tuner
3. Set the radio mode, use FM mode
4. Choose the antenna band to use, use 20-30W power in FM mode, press the radio PTT, watch the ATU antenna tuner PWR and SWR
5. ATU button TUNE use: short press (less than 1 second) ATU button, it is in reset state, long press (more than 1 second) ATU button is in tuning state
6. If the SWR display of the ATU antenna tuner in the transmitting state is greater than 2.0, it means that the antenna is detuned. You need to use the 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 is detuned. Seriously, it is not recommended to use a power above 30W, and the transmit 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 to transmit.

Packing List:
1 * Automatic Antenna Tuner
1 * USB Cable
1 * User Manual