---
product_id: 352657748
title: "ATU-100 Antenna Tuner Box atu100 Shell ATU100 1.8-50MHz case"
brand: "malahit"
price: "€ 51.16"
currency: EUR
in_stock: true
reviews_count: 9
category: "Malahit"
url: https://www.desertcart.ie/products/352657748-atu-100-antenna-tuner-box-atu100-shell-atu100-1-8
store_origin: IE
region: Ireland
---

# Compact Size: 140x88x38mm Impedance: 50 Ohm Max Range: 500 Meters ATU-100 Antenna Tuner Box atu100 Shell ATU100 1.8-50MHz case

**Brand:** malahit
**Price:** € 51.16
**Availability:** ✅ In Stock

## Summary

> 📡 Tune In, Stand Out!

## Quick Answers

- **What is this?** ATU-100 Antenna Tuner Box atu100 Shell ATU100 1.8-50MHz case by malahit
- **How much does it cost?** € 51.16 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/352657748-atu-100-antenna-tuner-box-atu100-shell-atu100-1-8)

## 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

- • **Durable Construction:** CNC perforated aluminum alloy provides both strength and a modern aesthetic.
- • **Lightweight & Portable:** Weighing in at just 1.5 inches high, this tuner box is easy to transport without sacrificing performance.
- • **Sleek & Stylish Design:** Crafted with precision, the ATU-100's aluminum alloy shell not only looks good but is built to last.
- • **User-Friendly Interface:** Equipped with a 0.96-inch OLED screen for clear visibility and easy operation.
- • **Versatile Compatibility:** Perfectly designed for the ATU-100 Automatic Antenna Tuner by N7DDC, ensuring seamless integration.

## Overview

The Malahit ATU-100 Antenna Tuner Box is a compact and stylish housing solution designed for the ATU-100 Automatic Antenna Tuner. With a robust aluminum alloy construction, it features a user-friendly OLED screen and is compatible with a range of tuners, making it an essential tool for any serious radio enthusiast.

## Description

Product description Install your kit into the shell,you will get a machine. (Note: ATU-100 kit is not included) when the shell is installed outside the applicable assembled ATU-100 kit antenna tuning board, you will get a palm tuner reduces the possibility of damage to the parts of the tuner. This shell is suitable for the installation of ATU-100 1.8-55MHz Automatic Antenna Tuner by N7DDC 7x7, please check the size before purchasing. [Shell Size]: 140*88*38mm(Length*width*height)[Suitable for ATU-100 PCB size: 120X62mm] [Weight]: 320g Package list 1. Aluminum alloy shell*1 (140*88*38mm L*W*H) 2. Front panel *1 3. Back panel *1(including a DC5.5*2.1 female socket) 4. 0.96 inch OLED screen *1 5. Power switch *1 6. Tune button *1 7. Auto button *1 8. Byp button *1 9.UHF-KF female connectors * 2 When you receive your package, if you find a certain accessory is missing, please send us a message via desertcart and we will resend the missing accessory to you. Thank you 1.How to Install it? The installation manual Step 1: Assemble your kit; Step 2: Install the front and back panels of the shell; Step 3: wiring; Step 4: Install the kit into the shell. We hope it helps to install the kit into the shell/case. Although the step is simple, it still requires simple hands-on ability. 2.Installation example： 1.ATU-100 shell install Handling screws and other accessories. (When you receive your package, if you find a certain accessory is missing, please send us a message via desertcart and we will resend the missing accessory to you. Thank you) 2.ATU-100 shell front panel Complete the front and rear panel installation, insert and connect the assembled kit. 3.ATU-100 shell complete Your fun, your harvest. Build a "home" for your ATU-100. 3.Scenes to be used Ready to use When you put the case and kit together, you are done. Check the OLED display If your ATU-100 kit is normal, the OLED screen will light up like this. If your kit is unable to be displayed on the screen or the screen is reversed, please check your own kit. You need to change your kit code. Success You have now built a "house" for your ATU-100, and it will appreciate your hard work.

Review: Not for beginners! - Kit is not for the novice! But, if you have several builds under your belt, that should suffice for this level. Winding inductors/ toroids and soldering experience a must! The review from Scouter III was detailed, informative ans spot on to the issues you may face, and I concur with him 100%. Some parts had no use in this kit, and others parts are not supplied at all. Not the end of the world, just be ready to hit the spare parts drawer to complete the tuner. I did add some FT37-43 toroids and 100 nf caps across the buttons and changed out one of the diodes to a 1n5711 on the swr bridge as per the suggestion by one YouTuber. This is a great tuner for the money if you are willing to do some slight modifications. It's usable without the mods, but much better with them. All in all, it was a fun build which provides you with a nice portable tuner for very little money.
Review: Great Kit But NOT For New Or First-Time Kit Builders - I FINALLY got my ATU-100 Antenna Tuner kit and this Tuner Box built after watching several YouTube videos done by previous builders. The Tuner works great and this box makes the whole unit look fabulous! However, I had to re-work some wiring errors I made due to the lack of detailed instructions and the fact that I am not an Electronics Assembly Expert. The difficulty is that there are no detailed Step-By-Step Instructions for this kit. There is adequate information on the document along with the Schematic to enable an experienced kit builder to assemble the kit. However, a relatively new or first-time kit builder probably will not be able to get it assembled. Here are a few things I learned (some the hard way!) - Unless you have SUPER eyesight, use a large magnifying glass/light before you attempt to build this kit. 1. For the Malahit ATU-100 Antenna Tuner Box, the image of the wiring on the back of the green Tune Switch is incorrect. The wire connecting half of the Auto, BYP and Tune switches together goes to GROUND, NOT the + wire as shown in the picture that comes with the Tuner Box. The OTHER side of the Tune switch gets the + wire. 2. The hookup wire necessary to fully assemble the ATU-100 kit does NOT come with the kit! You will have to provide the stranded insulated hookup wire yourself (NOWHERE is this mentioned on desertcart NOR the single Instruction sheet!). A. I used some 18 ga. stranded insulated wire for the initial power connector but the hole in the PCB made it tough to fit that size wire in the (-) PCB hole. The other wire (+) goes to the On/Off Power Switch so there was no issue there. B. I used 22 ga. stranded insulated hookup wire (very flexible!) for the other hookup wire connections that were necessary. C. The Yellow and White wires needed to connect the Auto and BYP switches to the BACK SIDE of the Printed Circuit Board (PCB) must be VERY small to fit into the two tiny PCB holes they must be soldered into. You will need to be very careful soldering these two wires to the back of the PCB because the solder pads are so small and so close together! 3. This is a very compact kit. Use a very small pointed Soldering Iron to prevent overheating the PCB or the already installed SMD components. 4. As another desertcart customer suggested, I recommend building and installing the Toroids FIRST. I also would add to build and install them in their numbered order. Trying to install the Toroids AFTER the Relays are soldered onto the PCB will be a nightmare. 5. Pay close attention to the size and LENGTH of the wire required for each Toroid as stated on the Instruction sheet. 6. As suggested in the instruction sheet, I used Allen Wrenches the described diameter as described to wind the three air core windings. 7. Take your time and be sure you understand EXACTLY where each component and wire should be soldered to the PCB. I initially soldered the four light yellow enameled wires for the Tandem Match Transformer "binocular" toroid into the WRONG 4 holes (underneath it!). They actually go into the four SMALL holes just outside the "binocular" toroid's diagram outline on the PCB. 8. The Electrolytic Capacitors have a very distinct mark on one side. Be sure that side of those Capacitors goes into the PCB hole that shows the white mark on the edge of the circle images on the PCB. 9. Examine the picture of the vertically installed diode as it is shown on the Instruction sheet. Be sure the white ring mark is at the TOP when you solder it into the PCB (you will have to bend that end of the diode's terminal wire down toward the other wire end to install it vertically). 10. If you buy the Tuner Box, BEFORE YOU SOLDER THE SLIP ON TERMINALS ONTO THE OLED, be sure you draw yourself a diagram showing which terminal on the OLED display module is which connection (i.e., Gnd, VAC, SCL and SDA). After you solder the slip-on terminals to the OLED display module, you will no longer be able to read those markings on it! 11. If you buy the Tuner Box pay close attention to how the four green mounting tabs are oriented in the Instruction sheet picture when they are attached to the PCB. 12. If you buy the Tuner Box, when pushing the On/Off Power Switch into the end panel, do your best to keep the switch even and press it straight into the rectangle hole (i.e., NOT one side in before the other!). 13. If you buy the Tuner Box, I suggest sticking a piece of electrical tape or other insulation material onto the back side of the front end panel. This tape will insulate the inside of the front box end panel. This is BETWEEN where the OLED display's soldered slip-on connectors are located and the inside of that box end. This should keep those solder connections from contacting the inside of that metal box end. The Instruction sheet does not mention this. It just didn't make sense to me to risk those solder connection points touching the metallic box end panel and potentially shorting out. I actually used a small file to flatten the sharply pointed solder points to make their thickness narrower and less likely to punch through the tape and contact the metal end panel. As I said, my completed ATU-100 Tuner and Tuner Box works great (the box looks great too!). However, my language during the build process was not fit for human ears! I hope this was helpful to others considering to buy and build this kit and that they have a much better experience building their kit. 73!

## Features

- 【Remarkably Compact】The shell of ATU-100 is designed by an excellent designer, compact and exquisite. Smooth appearance, easy to use.
- 【Product Applicable】This shell is suitable for the installation of ATU-100 Automatic Antenna Tuner by N7DDC 7x7
- 【Size】140*88*38mm(Length*width*height)
- 【What You Get】ATU-100 Automatic Antenna Tuner shell /housing，0.96-inch OLED screen，Some screws and switches，UHF connector.
- 【Visible Quality】CNC perforated aluminum alloy, the entire shell is made of aluminum alloy.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B099ZQ21GP |
| Antenna | Radio |
| AntennaDescription | Radio |
| Brand | Malahit |
| Color | Black |
| Customer Reviews | 4.2 out of 5 stars 95 Reviews |
| Impedance | 50 Ohms |
| Item Dimensions L x W x H | 5.51"L x 3.46"W x 1.5"H |
| Manufacturer | Malahit |
| Maximum Range | 500 Meters |
| Number of Channels | 1 |
| Number of Items | 9 |

## Product Details

- **Antenna:** Radio
- **Brand:** Malahit
- **Color:** Black
- **Number of Channels:** 1
- **Impedance:** 50 Ohm
- **Maximum Range:** 500 Meters
- **Product Dimensions:** 5.51"L x 3.46"W x 1.5"H
- **Manufacturer:** Malahit

## Images

![ATU-100 Antenna Tuner Box atu100 Shell ATU100 1.8-50MHz case - Image 1](https://m.media-amazon.com/images/I/817d-S4PhRL.jpg)
![ATU-100 Antenna Tuner Box atu100 Shell ATU100 1.8-50MHz case - Image 2](https://m.media-amazon.com/images/I/71TpStaqJrL.jpg)
![ATU-100 Antenna Tuner Box atu100 Shell ATU100 1.8-50MHz case - Image 3](https://m.media-amazon.com/images/I/91LFtCOuePL.jpg)
![ATU-100 Antenna Tuner Box atu100 Shell ATU100 1.8-50MHz case - Image 4](https://m.media-amazon.com/images/I/41LraA3uxZL.jpg)
![ATU-100 Antenna Tuner Box atu100 Shell ATU100 1.8-50MHz case - Image 5](https://m.media-amazon.com/images/I/71b5U361MOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Not for beginners!
*by J***N on May 19, 2025*

Kit is not for the novice! But, if you have several builds under your belt, that should suffice for this level. Winding inductors/ toroids and soldering experience a must! The review from Scouter III was detailed, informative ans spot on to the issues you may face, and I concur with him 100%. Some parts had no use in this kit, and others parts are not supplied at all. Not the end of the world, just be ready to hit the spare parts drawer to complete the tuner. I did add some FT37-43 toroids and 100 nf caps across the buttons and changed out one of the diodes to a 1n5711 on the swr bridge as per the suggestion by one YouTuber. This is a great tuner for the money if you are willing to do some slight modifications. It's usable without the mods, but much better with them. All in all, it was a fun build which provides you with a nice portable tuner for very little money.

### ⭐⭐⭐⭐ Great Kit But NOT For New Or First-Time Kit Builders
*by S***I on December 22, 2022*

I FINALLY got my ATU-100 Antenna Tuner kit and this Tuner Box built after watching several YouTube videos done by previous builders. The Tuner works great and this box makes the whole unit look fabulous! However, I had to re-work some wiring errors I made due to the lack of detailed instructions and the fact that I am not an Electronics Assembly Expert. The difficulty is that there are no detailed Step-By-Step Instructions for this kit. There is adequate information on the document along with the Schematic to enable an experienced kit builder to assemble the kit. However, a relatively new or first-time kit builder probably will not be able to get it assembled. Here are a few things I learned (some the hard way!) - Unless you have SUPER eyesight, use a large magnifying glass/light before you attempt to build this kit. 1. For the Malahit ATU-100 Antenna Tuner Box, the image of the wiring on the back of the green Tune Switch is incorrect. The wire connecting half of the Auto, BYP and Tune switches together goes to GROUND, NOT the + wire as shown in the picture that comes with the Tuner Box. The OTHER side of the Tune switch gets the + wire. 2. The hookup wire necessary to fully assemble the ATU-100 kit does NOT come with the kit! You will have to provide the stranded insulated hookup wire yourself (NOWHERE is this mentioned on Amazon NOR the single Instruction sheet!). A. I used some 18 ga. stranded insulated wire for the initial power connector but the hole in the PCB made it tough to fit that size wire in the (-) PCB hole. The other wire (+) goes to the On/Off Power Switch so there was no issue there. B. I used 22 ga. stranded insulated hookup wire (very flexible!) for the other hookup wire connections that were necessary. C. The Yellow and White wires needed to connect the Auto and BYP switches to the BACK SIDE of the Printed Circuit Board (PCB) must be VERY small to fit into the two tiny PCB holes they must be soldered into. You will need to be very careful soldering these two wires to the back of the PCB because the solder pads are so small and so close together! 3. This is a very compact kit. Use a very small pointed Soldering Iron to prevent overheating the PCB or the already installed SMD components. 4. As another Amazon customer suggested, I recommend building and installing the Toroids FIRST. I also would add to build and install them in their numbered order. Trying to install the Toroids AFTER the Relays are soldered onto the PCB will be a nightmare. 5. Pay close attention to the size and LENGTH of the wire required for each Toroid as stated on the Instruction sheet. 6. As suggested in the instruction sheet, I used Allen Wrenches the described diameter as described to wind the three air core windings. 7. Take your time and be sure you understand EXACTLY where each component and wire should be soldered to the PCB. I initially soldered the four light yellow enameled wires for the Tandem Match Transformer "binocular" toroid into the WRONG 4 holes (underneath it!). They actually go into the four SMALL holes just outside the "binocular" toroid's diagram outline on the PCB. 8. The Electrolytic Capacitors have a very distinct mark on one side. Be sure that side of those Capacitors goes into the PCB hole that shows the white mark on the edge of the circle images on the PCB. 9. Examine the picture of the vertically installed diode as it is shown on the Instruction sheet. Be sure the white ring mark is at the TOP when you solder it into the PCB (you will have to bend that end of the diode's terminal wire down toward the other wire end to install it vertically). 10. If you buy the Tuner Box, BEFORE YOU SOLDER THE SLIP ON TERMINALS ONTO THE OLED, be sure you draw yourself a diagram showing which terminal on the OLED display module is which connection (i.e., Gnd, VAC, SCL and SDA). After you solder the slip-on terminals to the OLED display module, you will no longer be able to read those markings on it! 11. If you buy the Tuner Box pay close attention to how the four green mounting tabs are oriented in the Instruction sheet picture when they are attached to the PCB. 12. If you buy the Tuner Box, when pushing the On/Off Power Switch into the end panel, do your best to keep the switch even and press it straight into the rectangle hole (i.e., NOT one side in before the other!). 13. If you buy the Tuner Box, I suggest sticking a piece of electrical tape or other insulation material onto the back side of the front end panel. This tape will insulate the inside of the front box end panel. This is BETWEEN where the OLED display's soldered slip-on connectors are located and the inside of that box end. This should keep those solder connections from contacting the inside of that metal box end. The Instruction sheet does not mention this. It just didn't make sense to me to risk those solder connection points touching the metallic box end panel and potentially shorting out. I actually used a small file to flatten the sharply pointed solder points to make their thickness narrower and less likely to punch through the tape and contact the metal end panel. As I said, my completed ATU-100 Tuner and Tuner Box works great (the box looks great too!). However, my language during the build process was not fit for human ears! I hope this was helpful to others considering to buy and build this kit and that they have a much better experience building their kit. 73!

### ⭐⭐⭐⭐⭐ Good case
*by A***A on January 29, 2026*

Well constructed but need better instructions.

## Frequently Bought Together

- Malahit ATU-100 Antenna Tuner Box atu100 Shell ATU100 1.8-50MHz case
- Malahit ATU-100 Antenna Tuner DIY Kits 1.8-50MHz atu100 Automatic Antenna Tuner by N7DDC 7x7 0.96 Inch OLED SMT and chip soldered 3.2 Version Firmware Programmed Unassembled
- DHT Electronics Handheld Antenna Cable SMA Male to UHF SO-239 Female Connectors 6'' Pack of 2 for Amplifier

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-06-09*