--- product_id: 554298613 title: "ATU-100 Antenna Tuner DIY Kits 1.8-50MHz atu100 Automatic Antenna Tuner by N7DDC 7 x 7 0.96 Inch OLED SMT and Chip Soldered 3.2 Version Firmware Programmed Unassembled" brand: "malahit" price: "69545CFA" currency: XOF in_stock: true reviews_count: 8 category: "Malahit" url: https://www.desertcart.sn/products/554298613-atu-100-antenna-tuner-diy-kits-1-8-50mhz-atu100 store_origin: SN region: Senegal --- # 1.8-50MHz wideband tuning 10-15V DC power range 0.96 inch OLED display ATU-100 Antenna Tuner DIY Kits 1.8-50MHz atu100 Automatic Antenna Tuner by N7DDC 7 x 7 0.96 Inch OLED SMT and Chip Soldered 3.2 Version Firmware Programmed Unassembled **Brand:** malahit **Price:** 69545CFA **Availability:** ✅ In Stock ## Summary > 📡 Tune like a pro, build like a boss! ## Quick Answers - **What is this?** ATU-100 Antenna Tuner DIY Kits 1.8-50MHz atu100 Automatic Antenna Tuner by N7DDC 7 x 7 0.96 Inch OLED SMT and Chip Soldered 3.2 Version Firmware Programmed Unassembled by malahit - **How much does it cost?** 69545CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/554298613-atu-100-antenna-tuner-diy-kits-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 - • **DIY Assembly Fun:** Pre-soldered SMT parts with easy instructions for hands-on pros - • **Power Smart & Safe:** Supports up to 100W working power with fine-tuning from 1W - • **Pro-Grade Components:** Premium 1000V SMD capacitors & imported PIC chip for durability - • **Seamless Auto-Tuning:** Automatically tunes SWR >1.1 for optimal signal clarity - • **Crystal-Clear Display:** Bright 0.96 inch OLED screen shows tuning data at a glance ## Overview The ATU-100 is a cutting-edge DIY automatic antenna tuner kit covering 1.8-50MHz frequencies, featuring the latest 3.2 firmware for precise auto-tuning above 1.1 SWR. It boasts a crisp 0.96 inch OLED display, high-quality 1000V SMD capacitors, and an imported PIC chip, all pre-soldered for streamlined assembly. Designed for amateur radio enthusiasts, it operates safely up to 100 watts with a power supply range of 10-15V DC, delivering professional-grade performance in a compact, hands-on kit. ## Description The latest firmware version is 3.2: -SWR greater than 1.1 automatically activates tuning, 3.2 program can be tuned under 5W. However, too low a value may result in insufficient fine-tuning. Please know this before placing an order. Parameter description: - Power supply range: 10-15 VDC. -Max current: 450 mA. - Maximum working power: 100 watts. - Maximum measured power: 150 watts. - Minimum power for tuning start: 1 watt. - Minimum measured power: 0.1 watts. - Step for measuring power below 10 watts: 0.1 watts. - Step for measuring power over 10 watts: 1 watt. - Accuracy of power measurement: 10%. - Maximum inductance set: 8.5 uH -Minimum step to adjust the inductance: 0.1uH - Maximum installed capacity: 1870 pF -Minimum step to adjust the capacity: 10 pF Box contents: weight: 250 g. - 1 x automatic antenna tuner kits. Contains the following elements: 1. PCB motherboard x 1 (SMD electronic components on the front and back have been soldered, 3.2 has flashed). 2. Multiple plug-in electronic components and accessories. 3. 1 x 0.96 inch OLED screen. 2 x SMA connectors. Note: 1. Insufficient tuning may occur within 5W. So do not try to be below 5W. 2. Recommended maximum power when tuning not over 30 watts. (After tuning, you can set 100 watts and work with this power, otherwise it will burn easily) 3. The product is DIY kits must have easy assembly ability. Review: Great little kit - Arrived in good time and went together easily. No problems with any of the components and it worked first time. The instructions could have been a little better, however, I would have thought you'd have a good idea on how to build such a kit if you were contemplating buying it. A worthwhile purchase. Review: Keeps you busy for a few hours. - when you order your Antenna tuner make sure it comes with the correct antenna sockets for your use. Assembled using the instructions provided and does not work double and triple checked my work against the instructions and still won't light the screen up. ## Features - [Version] Version 3.2 of the latest program has been flashed. If the version is updated, you can ask for the latest program. - [Product Features] The antenna tuner is automatically tuned, KIT by ATU (Automatic Antenna Tuner), developed by N7DDC, equipped with a 0.96 inch OLED screen, the data is clearly visible. - [High Quality Accessories] Use brand high quality SMD capacitors, C channel capacitors, use high-quality 1000V high voltage SMD capacitors and the imported PIC chip. - Interesting assembly: The kit has already soldered components and chips and comes with installation instructions (English language not guaranteed) that is easy to install and enjoys the fun of assembly. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09M3GH83D | | Antenna | Automatic Antenna Tuner Kit for HF Amateur Radio | | AntennaDescription | Automatic Antenna Tuner Kit for HF Amateur Radio | | Best Sellers Rank | 153,133 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 2,819 in Radio Communication | | Brand | Malahit | | Brand Name | Malahit | | Colour | Nope | | Customer Reviews | 4.5 out of 5 stars 83 Reviews | | EU Spare Part Availability Duration | 1 Years | | Impedance | 50 Ohms | | Manufacturer | Shenchuangyun Tech | | Manufacturer Part Number | CBG-3143 | | Maximum Range | 1000 Metres | | Maximum range | 1000 Metres | | Number of Channels | 1 | | Number of Items | 1 | | Number of channels | 1 | | Unit Count | 1.0 count | ## Product Details - **Antenna:** Radio - **Brand:** Malahit - **Colour:** Nope - **Number of channels:** 1 - **Impedance:** 50 Ohm - **Maximum range:** 1000 Metres - **EU Spare Part Availability Duration:** 1 Years - **Manufacturer:** Shenchuangyun Tech ## Images ![ATU-100 Antenna Tuner DIY Kits 1.8-50MHz atu100 Automatic Antenna Tuner by N7DDC 7 x 7 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) ![ATU-100 Antenna Tuner DIY Kits 1.8-50MHz atu100 Automatic Antenna Tuner by N7DDC 7 x 7 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) ![ATU-100 Antenna Tuner DIY Kits 1.8-50MHz atu100 Automatic Antenna Tuner by N7DDC 7 x 7 0.96 Inch OLED SMT and Chip Soldered 3.2 Version Firmware Programmed Unassembled - Image 3](https://m.media-amazon.com/images/I/81qh2r1en4L.jpg) ![ATU-100 Antenna Tuner DIY Kits 1.8-50MHz atu100 Automatic Antenna Tuner by N7DDC 7 x 7 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) ![ATU-100 Antenna Tuner DIY Kits 1.8-50MHz atu100 Automatic Antenna Tuner by N7DDC 7 x 7 0.96 Inch OLED SMT and Chip Soldered 3.2 Version Firmware Programmed Unassembled - Image 5](https://m.media-amazon.com/images/I/61thU0O6NtL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great little kit *by J***W on 13 July 2024* Arrived in good time and went together easily. No problems with any of the components and it worked first time. The instructions could have been a little better, however, I would have thought you'd have a good idea on how to build such a kit if you were contemplating buying it. A worthwhile purchase. ### ⭐⭐ Keeps you busy for a few hours. *by M***K on 26 February 2024* when you order your Antenna tuner make sure it comes with the correct antenna sockets for your use. Assembled using the instructions provided and does not work double and triple checked my work against the instructions and still won't light the screen up. ### ⭐⭐⭐ Auto Antenna Tuner *by J***. on 23 June 2024* This was the third unit I have bought, the first 2 had all the SMD components float soldered on. But not this one, all the components are loose and very difficult to identify the correct chip capacitors, inductors, resistors etc. ## Frequently Bought Together - ATU-100 Antenna Tuner DIY Kits 1.8-50MHz atu100 Automatic Antenna Tuner by N7DDC 7 x 7 0.96 Inch OLED SMT and Chip Soldered 3.2 Version Firmware Programmed Unassembled - Ancable UHF PL-259 Female to UHF PL-259 Female Coaxial Adaptor Connector Coupler Joiner for CB Ham Radio Antenna Pack of 2 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/554298613-atu-100-antenna-tuner-diy-kits-1-8-50mhz-atu100](https://www.desertcart.sn/products/554298613-atu-100-antenna-tuner-diy-kits-1-8-50mhz-atu100) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-19*