---
product_id: 359745843
title: "Malahit ATU-100 EXT Antenna Tuner 1.8-50MHz atu100 by N7DDC 7x7 0.96 Inch OLED 3.2 Firmware Programmed with Housing Assembled Machine with USB Cable（No Battery） Compatible with Radio Antenna"
brand: "malahit"
price: "KSh31663"
currency: KES
in_stock: true
reviews_count: 8
category: "Malahit"
url: https://www.desertcart.co.ke/products/359745843-malahit-atu-100-ext-antenna-tuner-1-8-50mhz-atu100
store_origin: KE
region: Kenya
---

# 5V to 12V USB booster included 1.8-50MHz wide tuning range 0.96-inch OLED display Malahit ATU-100 EXT Antenna Tuner 1.8-50MHz atu100 by N7DDC 7x7 0.96 Inch OLED 3.2 Firmware Programmed with Housing Assembled Machine with USB Cable（No Battery） Compatible with Radio Antenna

**Brand:** malahit
**Price:** KSh31663
**Availability:** ✅ In Stock

## Summary

> 📡 Tune like a pro, wherever you go — never miss a signal!

## Quick Answers

- **What is this?** Malahit ATU-100 EXT Antenna Tuner 1.8-50MHz atu100 by N7DDC 7x7 0.96 Inch OLED 3.2 Firmware Programmed with Housing Assembled Machine with USB Cable（No Battery） Compatible with Radio Antenna by malahit
- **How much does it cost?** KSh31663 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/359745843-malahit-atu-100-ext-antenna-tuner-1-8-50mhz-atu100)

## Best For

- malahit enthusiasts

## Why This Product

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

## Key Features

- • **Pro-Grade Components:** Equipped with high-voltage 1000V SMD capacitors and imported PIC chip for reliable, high-performance tuning.
- • **Seamless Auto-Tuning:** Effortlessly optimize antenna performance across HF bands 1.8-50MHz with precision firmware v3.2.
- • **Plug & Play Convenience:** Pre-assembled with no battery needed—just connect and tune instantly, saving you setup time.
- • **Power Boost Flexibility:** Includes USB booster board to elevate 5V input to 12V, perfect for portable power banks and on-the-go operation.
- • **Compact Aluminum Alloy Design:** Sleek, durable housing crafted for professionals who value style and portability in their tech gear.

## Overview

The Malahit ATU-100 EXT is a professional-grade automatic antenna tuner covering 1.8-50MHz bands, featuring the latest 3.2 firmware for bug-free, precise tuning. Its compact aluminum alloy shell houses high-quality components including 1000V SMD capacitors and an imported PIC chip, ensuring durability and performance. Ready to use out-of-the-box with a USB booster board for flexible power options, this tuner is ideal for millennial managers who demand efficient, stylish, and reliable radio antenna optimization.

## Description

desertcart.com: Malahit ATU-100 EXT Antenna Tuner 1.8-50MHz atu100 by N7DDC 7x7 0.96 Inch OLED 3.2 Firmware Programmed with Housing Assembled Machine with USB Cable（No Battery） Compatible with Radio Antenna : Electronics

Review: Tuner would tune were the radio’s built in tuner could not. Excellent product. - Thank you David, N7DDC for a great working tuner. The tuner arrived one day after I ordered it.This is a quality unit and tuned a Delta Loop antenna on 80, 40 and 20 meter bands.I installed the tuner with in 5 minutes. Well worth the price.
Review: It’s great! I wish I had 3 of these they so good - Most excellent - it has the qrp settings perfect ! It tunes great ! It works better than any other tuner I bought in similar range and built much better / it’s a champ !! I wish I had 3 of these

## Features

- [ATU-100 Version]：Latest program：3.2 version has been programmed.Compared with version 3.1, some bugs have been fixed.
- [Product Features]：Automatic Antenna Tuner machine with Shell（No battery）,No need to assemble,can use it directly,Automatically tuned developed by N7DDC.Compatible with radio antenna.
- [High-quality Accessories]：High-quality SMD capacitors, C-channel capacitors, high-quality 1000V high-voltage SMD capacitors, and the PIC chip imported. Really UHF connector.
- [Remarkably Compact]：The shell is designed by an excellent designer, compact and exquisite.The entire shell (including the front and back panels) is made of aluminum alloy, not PCB board.
- [What You Get]：ATU-100 Automatic Antenna Tuner machine with Shell（No battery）, 1* DC5.5 x 2.1 power cord , 1 *USB Booster board
- [The booster board]：(5V boosted to 12V) is connected to the usb cable, and the 5.5 connector power cable is soldered to the booster board.If you use it powered by a portable power bank (not required under normal circumstances)
- [Note]:Do not try to be lower than 5W,Insufficient tuning may occur within 5W.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B099ZLVV3V |
| Antenna | Radio |
| AntennaDescription | Radio |
| Best Sellers Rank | #65,928 in Electronics ( See Top 100 in Electronics ) #5,138 in Portable Audio & Video #114,468 in Electronics Accessories & Supplies |
| Brand | Malahit |
| Color | Black |
| Customer Reviews | 4.2 out of 5 stars 267 Reviews |
| Impedance | 50 Ohms |
| Item Dimensions L x W x H | 5.5"L x 3.46"W x 1.5"H |
| Manufacturer | Malahit |
| Maximum Range | 1000 Meters |
| Number of Channels | 1 |

## Product Details

- **Antenna:** Radio
- **Brand:** Malahit
- **Color:** Black
- **Impedance:** 50 Ohms
- **Manufacturer:** Malahit
- **Maximum Range:** 1000 Meters
- **Number of Channels:** 1
- **Number of Items:** 1
- **Product Dimensions:** 5.5"L x 3.46"W x 1.5"H

## Images

![Malahit ATU-100 EXT Antenna Tuner 1.8-50MHz atu100 by N7DDC 7x7 0.96 Inch OLED 3.2 Firmware Programmed with Housing Assembled Machine with USB Cable（No Battery） Compatible with Radio Antenna - Image 1](https://m.media-amazon.com/images/I/617TbPbJp-L.jpg)

## Questions & Answers

**Q: Will this work with a kenwood ts-480sat?**
A: I found this to be junk that did nothing.  Save your money.

**Q: So239 connectors are shown.  Please verify?**
A: This video is the size of the connector.

**Q: How do you use the Booster Board please?**
A: I believe the intent of the booster board is to power the unit using a USB device. This unit requires very little power to operate, so instead of powering it via a 12V supply (battery), one option is to bring a USB battery bank or similar power device and, using this cable/board, power the unit. That's my guess.

**Q: What is the swr matching range and the impedance matching range?**
A: For my use and what you want to connect to this device impedance wise, 50 ohms from the transmitter and the antenna is optimal.
But the purpose of this unit is not only to display the SWR but to improve a mismatch of impedance between the transmitter and the antenna.
On frequencies where I have a mismatch between my transmitter and antenna, this device does a good job matching the impedance where my SWR is usually below 2.5.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tuner would tune were the radio’s built in tuner could not. Excellent product.
*by R***S on January 1, 2026*

Thank you David, N7DDC for a great working tuner. The tuner arrived one day after I ordered it.This is a quality unit and tuned a Delta Loop antenna on 80, 40 and 20 meter bands.I installed the tuner with in 5 minutes. Well worth the price.

### ⭐⭐⭐⭐⭐ It’s great! I wish I had 3 of these they so good
*by A***W on January 10, 2026*

Most excellent - it has the qrp settings perfect ! It tunes great ! It works better than any other tuner I bought in similar range and built much better / it’s a champ !! I wish I had 3 of these

### ⭐⭐⭐⭐⭐ Would recommend!
*by J***F on January 10, 2026*

This thing works like a champ for my POTA Go Box. I use it to fine tune my antenna when I change bands. The tuner is well made in a nice aluminum casing... I expect that it will last for many years to come.

## Frequently Bought Together

- Malahit ATU-100 EXT Antenna Tuner 1.8-50MHz atu100 by N7DDC 7x7 0.96 Inch OLED 3.2 Firmware Programmed with Housing Assembled Machine with USB Cable（No Battery）
- Superbat UHF Male PL-259 to UHF Male PL-259 Low Loss Digital Coax UHF Jumper Cable (2ft RG58) for HAM & CB Radio,Antenna Analyzer,Dummy Load,SWR Meter
- Superbat PL-259 Jumper Cable UHF (Pl259) Male to Male Low Loss Digital RG58 Coax Cable (12 Inch RG58) for HAM & CB Radio,Antenna Analyzer,Dummy Load,SWR Meter 2-Pack

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-07*