ATU100 | Antenna Tuner | Built in Battery | 100 W | USB Charging

 

Boost Performance with Our HF Antenna Tuner

Ensure maximum power transfer and protect your transceiver with our high-quality HF antenna tuner. Designed to match your antenna system to a 50-ohm load, it improves signal strength, reduces SWR, and gives you the flexibility to use a wide range of antennas—even non-resonant ones. Perfect for reliable, high-efficiency HF communication.

About this Antenna Tuner Unit

The application for which this tuner is sold is POTA/SOTA and Field Days. It is meant for intermittent use and is ideal for tuning EFHW, semi resonant random wires and dipoles that are resonant a few hundred Khz off the desired frequency.

This ATU can generally tune an SWR of 3:1 or better and requires 10 watts to 20 watts to tune.

The maximum power used during tuning should not exceed 20 watts during tuning. (it can be set to 100 watts after tuning, and work at this power, otherwise the components and board can be burnt – this does not fall under the warranty)

The tuner will tune from 1.8 Mhz to 54 Mhz

Each unit is personally tested to tune an SWR of 3:1 or better on all bands from 80m to 6m. Note: Tuning does not imply an SWR of 1:1, but rather an SWR better than it was before tuning. Keep in mind that the application is tuning an EFHW or similar for a POTA activation or for a base station antenna. The ATU 100 will tune semi resonant antennas or antennas that are harmonics of the original wave length. For antennas that are not resonant we recommend either a manual tuner or one of the LDG antenna tuners ($550 +) from Andrews Communication in Sydney.

The warranty is void if the ATU is opened, tuning has been undertaken at power above 20watts or if the circuit board and or components are burnt.

Name: ATU100 Tuner

Material: aluminum alloy

Color: black

Display: 0.91inch OLED display

Charge: USB Type-C cable

Battery: 1 * lithium battery, 3.7V, 1800mAh (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

Package size: 175 * 122 * 55mm / 6.89 * 4.80 * 2.17in

Package weight: 465g / 1.03lb

Packing List:

1 * Type-C Cable