---
product_id: 529421643
title: "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"
brand: "malahit"
price: "1557 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/529421643-malahit-atu-100-antenna-tuner-diy-kits-1-8-50mhz
store_origin: PL
region: Poland
---

# 100W max power handling 1.8-50MHz wideband tuning 0.96 inch OLED display 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

**Brand:** malahit
**Price:** 1557 zł
**Availability:** ✅ In Stock

## Summary

> 📡 Tune like a pro, build like a boss — own the airwaves with Malahit ATU-100!

## Quick Answers

- **What is this?** 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 by malahit
- **How much does it cost?** 1557 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/529421643-malahit-atu-100-antenna-tuner-diy-kits-1-8-50mhz)

## 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

- • **Power Smart & Safe:** Supports up to 100W operation with recommended tuning under 30W to protect your gear.
- • **Seamless Auto-Tuning:** Automatically tunes SWR >1.1 starting from just 1W power for precision signal optimization.
- • **Premium SMD Components:** High-voltage 1000V capacitors and imported PIC chip ensure durability and top-tier performance.
- • **Crystal-Clear OLED Display:** 0.96 inch screen delivers real-time, easy-to-read tuning data at a glance.
- • **DIY Assembly with a Pro Touch:** Pre-soldered SMT parts plus clear instructions make building this kit a rewarding hands-on experience.

## Overview

The Malahit ATU-100 is a cutting-edge DIY automatic antenna tuner kit covering 1.8-50MHz frequencies. Featuring the latest 3.2 firmware, it auto-tunes SWR above 1.1 starting at 1 watt, displayed on a crisp 0.96 inch OLED screen. Built with premium 1000V SMD capacitors and an imported PIC chip, it supports up to 100 watts max power. The kit arrives mostly pre-assembled for an engaging yet accessible build, perfect for tech-savvy enthusiasts aiming to optimize antenna performance with precision and style.

## Description

The latest firmware version is 3.2：-SWR greater than 1.1 will automatically activate tuning, and the minimumpower has been changed from 5W to 1W. 3.2 Program can be tuned below 5W.However, Too low value may result in insufficiently fine tuning (originaldefault is greater than 5W auto tuning) , please know this before placing an order.Parameter Description:-Power supply range: 10-15 VDC-Max current: 450mA-Max working power: 100 watts-Max measured power: 150 watts-Minimum power for tuning start: 1 watt-Recommended maximum power while tuning not above 30 watts. (after tuningyou can set 100 watts and work on this power)-Minimum measured power: 0.1 watt-Step for measurement on powers under 10 watts: 0.1 watt-Step for measurement on powers above 10 watts: 1 watt-Power measurement accuracy: 10%-Maximum inductance set: 8.5 uH-Minimal step for setting inductance: 0.1 uH-Maximum installed capacity: 1870 pF-Minimal step for setting capacity: 10 pFPackage Included: Weight:250g-1 xAutomatic Antenna Tuner KitsContains the following items:1.PCB motherboard * 1 (SMD electroniccomponents on the front and back have been soldered, and the latest version ofthe firmware has been burned)2. Several plug-in electronic components and accessories(User welding is required)3. 0.96 inch OLED screen * 14.UHF-KF female connectors * 2 (also named SO239/SL16/PL259)Note:1.Insufficient tuning may occur within 5W. So do not try to be lower than 5W.2.Recommended maximum power while tuning not above30 watts. (after tuning you can set 100 watts and work on this power，Otherwise it will burn easily)3. The product is DIY kits need to have weldingability.

## Features

- [Version] The 3.2 version of the latest program has been burned. If the version is updated, you can ask for the latest program.
- [Product Features] The antenna tuner is automatically tuned,KIT of ATU (Automatic Antenna Tuner) developed by N7DDC, equipped with a 0.96 inch OLED screen, the data is clearly visible.
- [High-quality accessories] Use high-quality brand SMD capacitors, C-channel capacitors, use high-quality 1000V high-voltage SMD capacitors, and the PIC chip imported.
- [Interesting assembly] The kit has already soldered components and chips, and will be equipped with installation instructions, which is easy to install and enjoy the fun of assembly.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Malahit |
| Manufacturer | Malahit |
| Product Dimensions | 14.99 x 9.91 x 4.83 cm; 250 g |
| Number of items | 1 |
| Voltage | 10 Volts |
| Wattage | 100 Watts |
| Batteries Included | No |
| Batteries Required | No |
| Includes remote | No |
| Manufacturer | Malahit |
| Item Weight | 250 g |

## Product Details

- **Antenna:** Radio
- **Brand:** Malahit
- **Colour:** Multicolor
- **Number of Channels:** 1
- **Impedance:** 50 Ohms

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/81k6DVS7Y8L.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/81Toywi+cvL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/81EeAcLcKCL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/810rY-uRcOL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/61HjmYCRvWL.jpg)

## Questions & Answers

**Q: Display wiring. Board has 5 pins led has 4 which one goes were ?**
A: Display Board, Connector Up:
Left to right, Yellow, Blue, Orange Green
Tuner Board, Connector Up:
Left to right  Blank (MCLR) Red, Green, Yellow, Blue

Unfortunately, I could not include pictures

**Q: Does this kit require programming with firmware or othrr doftware before use?  Or csn iy be assembled an put right into use as is?**
A: Hello, the PCB in this kit has been programmed. You no longer need to program after receiving IT. thank you

**Q: Why are capacitors c1-c7 missing from kits? and they don't appear on the finished? boards in the photos.**
A: Just a guess, but are they in parallel with other caps?  They might be for fine tuning.  Or if the parallel cap is of a value that is sometimes hard to get, but can be closely approximated by paralleling 2 capacitors.

**Q: I noticed in the pictures it has the smaller coaxial connectors to the larger ones that come with it work?**
A: It comes with both SMA connectors and also so-239 connectors to fit standard PL-259 plugs. You can install either type when assembling.

## Frequently Bought Together

- 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
- Malahit ATU-100 Antenna Tuner Box atu100 Shell ATU100 1.8-50MHz case
- 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 Poland*
*Store origin: PL*
*Last updated: 2026-01-27*