Malahit ATU-100 EXT front OLED display for precise tuning.
Malahit ATU-100 EXT aluminum shell shows robust portable design.
Malahit ATU-100 EXT USB booster board powers field tuning.
Malahit ATU-100 EXT power cable enables quick setup.
Malahit ATU-100 EXT compact design fits tight desks.
Malahit ATU-100 EXT ready for use with radio setups.
Malahit ATU-100 EXT packaging includes all essentials.

Malahit

Malahit ATU-100 EXT Antenna Tuner 1.8–50 MHz | N7DDC, Aluminum Shell, 0.96 inch OLED

High-performance electronics accessories made for confident daily results

$115.33

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Why customers choose Nexoltic

Overview

The Malahit ATU-100 EXT is a compact automatic antenna tuner designed to cover a broad 1.8–50 MHz spectrum. Pre‑programmed with firmware version 3.2, it emphasizes a plug‑and‑play experience with a robust aluminum alloy shell. The unit ships assembled and ready to use, with no battery required, offering a clean, field‑friendly footprint for desk setups or portable rigs.

Design and Build

Housed in a purpose‑built aluminum shell, the ATU-100 EXT presents a durable, travel‑ready form factor. The exterior is compact and refined, while the internal layout prioritizes reliability and ease of use. A 0.96 inch OLED display delivers clear tuning readouts as you operate, helping you visualize the tuning status at a glance.

  • Automatic tuning across 1.8–50 MHz, enabling quick adaptation to different antennas and bands.
  • Ready to use straight out of the box; no assembly required and a sturdy shell that is not a PCB board.
  • High‑quality components including SMD capacitors, C‑channel capacitors, and up to 1000V high‑voltage SMD capacitors, paired with a reliable PIC chip.
  • Durable UHF connector design supports secure, long‑lasting connections.

In Practice

When paired with a compatible radio, the Malahit ATU-100 EXT can streamline tuning across multiple setups. The compact design fits neatly on a desk or in a portable rig, while the OLED readout provides a steady visual cue of the tuning status as you work.

  • USB power path: a booster board converts 5V to 12V, allowing operation from a USB source or a power bank in many situations.
  • Power guidance: avoid operation below 5W for dependable tuning performance, as lower power levels may not lock reliably.
  • Firmware reliability: version 3.2 includes bug fixes relative to 3.1, reflecting ongoing refinements.

What’s Included

The package comprises the ATU-100 Automatic Antenna Tuner with shell (no battery), a DC 5.5 x 2.1 mm power cord, and a USB booster board. It is designed to work with radios and antennas that benefit from an external tuner to improve match conditions.

FAQ

Q: What frequencies does the Malahit ATU-100 EXT cover?

A: Automatic tuning across 1.8–50 MHz with compatible radios; no battery needed.

Q: What is included in the box for the ATU-100 EXT?

A: ATU-100 unit with aluminum shell, DC power cord, and USB booster board; powered from USB or a power bank.

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