The shortwave automatic antenna tuner contains a set of 7 capacitors and 7 inductors, which allows it (with the largest configuration) to work effectively in a wide frequency band, overlapping the amateur radio HF band of 1.8-55MHz. Built-in lithium battery, 3.7V, 1500mAh, you can use Type-C cable to recharge it. Equipped with 0.91inch OLED display, you can see the data clearly. Automatically tuned and do not need control wires, suitable for most radio stations. You can have a try.

Features:
1. The shortwave automatic antenna tuner contains a set of 7 capacitors and 7 inductors, which allows it (with the largest configuration) to work effectively in a wide frequency band, overlapping the amateur radio HF band of 1.8-30MHz.
2. Made of quality material, wear resistance, with stable and reliable performance.
3. Built-in lithium battery, 3.7V, 1500mAh, you can use Type-C  cable to recharge it.
4. Equipped with 0.91inch OLED display, you can see the data clearly.
5. Automatically tuned, no human and control wires are required, and it is suitable for most radio stations.
6. One button to on/off, easy to use very convenient.

Instructions:
Connect the radio, ATU antenna tuner and antenna.
For the first use, please set the output power of the radio or power amplifier between 20-30W, or the high-power tuning can easily damage the antenna tuner.
Set the radio mode, use frequency modulation mode.
Choose the antenna band to use, use 20-30W power in frequency modulation mode, press the radio PTT, observe the PWR and SWR of ATU antenna tuner.
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.
If the SWR display of the ATU antenna tuner in the transmitting state is >2.0, it means that the antenna is detuned.6.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. In serious cases, it is not recommended to use more than 30W power, 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.

Specifications:
Name: ATU100 Tuner
Material: aluminum alloy
Color: black
Display: 0.91inch OLED display
Charge: USB Type-C cable
Battery: 1 * lithium battery, 3.7V, 1500mAh
(included)
Voltage: typical + 12 V  (DC10-15V, 13.8V)
Working frequency: 1.8-55MHz
Maximum current consumption: 400mA
Maximum working power: 100W
Maximum possible measurement power: 150W
Minimum power required to starts tuning: 5W
Minimum possible measurement power: 0.1W
Measurement step for power up to 10W: 0.1W
Measurement step with power higher than 10W: 1W
Power measurement accuracy: 10%
Maximum installation inductance: 8.53uH
Minimum installation inductance step length: 0.05uH
Maximum installation capacitance: 1869pF
Minimum installation capacitance step length: 10pF
Number of panel buttons: 3 (ON/OFF, AUTO, TUNE)
Item size: 160 * 90 * 40mm / 6.30 * 3.54 * 1.57in
Item weight: 413g / 0.91lb
Package size: 175 * 122 * 55mm / 6.89 * 4.80 * 2.17in
Package weight: 465g / 1.03lb

Packing List:
1 * ATU100 Tuner
1 * Type-C Cable


This automatic antenna tuner works effectively in a wide band from 1.8 to 30MHz. The minimum starting tuning is 0.2W, and the maximum measurable power is 20W. It can be used in 20W SSB single sideband shortwave devices. FT8, CW, Frequency Modulation, AM and other continuous modes. 7 group LC combination reaction. It is suitable for small radio stations within 20W.

Features:
1. The housing is made of fine quality materials that are resistant to wear and has a stable and reliable performance.
2. This shortwave automatic antenna tuner can be used as both a shortwave power meter and a standingwave meter.
3. The minimum starting tuning is 0.2W, and the maximum measurable power is 20W.
4. It works effectively in a wide band from 1.8 to 30MHz.
5. It can be used in 20W SSB single sideband shortwave devices.
6. FT8, CW, Frequency Modulation, AM and other continuous modes.
7 .7 group LC combination reaction.
8. Equipped with a digital display, you can see the data clearly.
9. Automatic tuning requires no human and no control wires, and is suitable for most stations.
10. Built-in lithium battery, 3.7V, 1200mAh, and you can recharge it with a Type-C cable.
11. One button to on/off, easy to use and very convenient.
12. Use frequency: 2-30MHz extended to 54MHz maximum.
13. It is suitable for small radio stations within 20W.

Easy to use: turn on the power, connect the shortwave machine to the automatic antenna tuning IN radio frequency line, antenna connected to the automatic antenna tuning ANT (BNC seat, or fast socket), am, fm, cw small power 1-5w tuned well (swr1.5 within), you can high-power with.

Specifications:
Name: Automatic Antenna Tuner
Material: aluminum alloy + printed circuit board
Charge: USB Type-C cable
Battery: 1 * lithium battery, 3.7V, 1200mAh
 (included)
Working frequency: 1.8-30MHz
T-PER: 0.2W (min)
Power: 20W (max)
Item size: 167 * 90 * 38mm / 6.57 * 3.54 * 1.50in
Item weight: 371g / 13.09ounce
Package size: 182 * 120 * 62mm / 7.17 * 4.72 * 2.44in
Package weight: 437g / 15.41ounce

Packing List:
1 * Automatic Antenna Tuner
1 * Type-C Cable