---
product_id: 546259301
title: "Portable Automatic Antenna Tuner ATU-100 | 100W 1.8-55MHz OLED Display | USB Charging Internal Battery"
brand: "walfront"
price: "€ 200.33"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/546259301-portable-automatic-antenna-tuner-atu-100-100w-1-8-55mhz
store_origin: IE
region: Ireland
---

# 100W max power output 1.8-55MHz wide frequency range 1350mAh rechargeable battery Portable Automatic Antenna Tuner ATU-100 | 100W 1.8-55MHz OLED Display | USB Charging Internal Battery

**Brand:** walfront
**Price:** € 200.33
**Availability:** ✅ In Stock

## Summary

> 📡 Tune in, power up, and never miss a signal!

## Quick Answers

- **What is this?** Portable Automatic Antenna Tuner ATU-100 | 100W 1.8-55MHz OLED Display | USB Charging Internal Battery by walfront
- **How much does it cost?** € 200.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/546259301-portable-automatic-antenna-tuner-atu-100-100w-1-8-55mhz)

## Best For

- walfront enthusiasts

## Why This Product

- Trusted walfront brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **USB-Powered Freedom:** Recharge anywhere with USB-A charging—ditch bulky power sources and stay connected.
- • **One-Button Smart Control:** Intuitive short/long press operation with real-time OLED feedback—no guesswork in the field.
- • **Global Band Compatibility:** Seamlessly tune antennas from 1.8 to 55 MHz, unlocking worldwide radio contacts.
- • **Effortless Precision Tuning:** Achieve ultra-low SWR ratios down to 1.05 for crystal-clear long-distance comms.
- • **Rugged & Ready for Adventure:** Durable aluminum alloy casing built to withstand outdoor POTA and portable ops.

## Overview

The Walfront Portable Automatic Antenna Tuner ATU-100 is a compact, rugged device designed for efficient antenna tuning across 1.8-55 MHz frequencies. Featuring a 1350mAh rechargeable battery with USB-A charging, a bright OLED display for real-time SWR and power monitoring, and a simple one-button interface, it supports up to 100W transmission power post-tuning. Its aluminum alloy build ensures durability and portability, making it ideal for professional and portable radio operators seeking reliable, precise antenna matching on the go.

## Description

Portable Automatic Antenna Tuner ATU-100 | 100W 1.8-55MHz OLED Display | USB Charging Internal Battery

## Features

- Precision Tuning Performance: Reduces high SWR efficiently across 40m/20m/80m bands, achieving optimal ratios as low as 1.05. Supports tuning from 5W power input and handles 100W SSB transmission post-tuning for clear long-range communication
- Intuitive Single-Button Control: Simplified operation with short/long press function for tuning and reset. Features real-time OLED display showing SWR and power metrics, eliminating guesswork during field operations
- Rugged Portable Design: Aluminum alloy casing ensures durability, heat dissipation, and corrosion resistance. Compact build with internal battery supports portable/POTA operations without external power
- USB Charging Convenience: Integrated 1350mAh battery recharges via included USB-A to USB-C cable. Note: Requires USB-A power source (USB-C to USB-C not supported)
- Wide Band Compatibility: Operates at 1.8-55MHz with 10-15VDC voltage range. Tunes antennas rapidly for radios like Kenwood/ANYTONE, enabling global contacts (e.g., US to Europe/Russia)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Walfront |
| Manufacturer | Walfront |
| Model | Walfrontkt7r4n2chw6419 |
| Package Dimensions | 18.6 x 12.5 x 6.2 cm; 580 g |
| Item model number | Walfrontkt7r4n2chw6419 |
| Compatible Devices | default |
| Mounting Hardware | inc |
| Number of items | 1 |
| Power Source | PowerSource |
| Batteries Included | No |
| Batteries Required | No |
| Material | default |
| Device type | default |
| Manufacturer | Walfront |
| Item Weight | 580 g |

## Product Details

- **Antenna:** Radio
- **Brand:** Walfront
- **Colour:** Black
- **Number of Channels:** 1
- **Impedance:** 50 Ohms

## Images

![Portable Automatic Antenna Tuner ATU-100 | 100W 1.8-55MHz OLED Display | USB Charging Internal Battery - Image 1](https://m.media-amazon.com/images/I/61QwELwi9oL.jpg)
![Portable Automatic Antenna Tuner ATU-100 | 100W 1.8-55MHz OLED Display | USB Charging Internal Battery - Image 2](https://m.media-amazon.com/images/I/81qMJVw-vkL.jpg)
![Portable Automatic Antenna Tuner ATU-100 | 100W 1.8-55MHz OLED Display | USB Charging Internal Battery - Image 3](https://m.media-amazon.com/images/I/71264v4rCBL.jpg)
![Portable Automatic Antenna Tuner ATU-100 | 100W 1.8-55MHz OLED Display | USB Charging Internal Battery - Image 4](https://m.media-amazon.com/images/I/614+X+Xcq9L.jpg)
![Portable Automatic Antenna Tuner ATU-100 | 100W 1.8-55MHz OLED Display | USB Charging Internal Battery - Image 5](https://m.media-amazon.com/images/I/61NPXrI8gsL.jpg)

## Frequently Bought Together

- ATU‑100 Mini Automatic Antenna Tuner 0.96in Display Radio Automatic Antenna Tuner with USB Cable 1.8‑55Mhz Radio Tuner
- RFAdapter RG8x Coaxial Cable, CB Coax Cable, 50ft UHF PL259 Male to Male Low Loss CB Antenna Cables, 50 Ohm for HAM Radio, Antenna Analyzer
- YOTENKO RG58 Coaxial Cable 49.2ft, CB Coax Cable, UHF PL259 Male to Male Cable 50 Ohm Coax Low Loss for HF VHF CB Radio, Ham Radio, SWR Meter, Scanner, Antenna Analyzer

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**Shop now:** [https://www.desertcart.ie/products/546259301-portable-automatic-antenna-tuner-atu-100-100w-1-8-55mhz](https://www.desertcart.ie/products/546259301-portable-automatic-antenna-tuner-atu-100-100w-1-8-55mhz)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-27*