ATU 100 EXT Automatic Antenna Tuner 1.8 to 50 MHz Plug And Play With 3.2 Firmware OLED Display Assembled USB Cable Included No Battery Ready To Use With Radios
✔️ 3.2 firmware with OLED display, plug‑and‑play, USB power
This compact automatic antenna tuner sits between your radio and antenna to automatically tune across 1.8-50 MHz. It ships assembled with an aluminum alloy shell, needs no battery, and is ready to use with radios.
Designed to sit between your transceiver and the antenna, this unit automates impedance matching across the 1.8-50 MHz bands. The aluminum alloy shell is solid, with a true UHF connector, and it includes a USB booster board for power.
✅ Frequency range: 1.8-50 MHz
✅ Firmware version 3.2 preprogrammed; fixed bugs from 3.1
✅ OLED display for tuning status
✅ Aluminum alloy shell; compact, rugged, UHF connector
✅ USB booster board boosts 5V to 12V; includes DC power cord 5.5 x 2.1 mm
✅ Pack size: 1 unit
💡 What is an automatic antenna tuner used for in amateur radio setups? An automatic antenna tuner matches transmitter impedance to the antenna, maximizing power transfer and minimizing SWR across bands. This handy device makes tuning quick and handy.
- Improved impedance matching across 1.8-50 MHz for multi-band operation
- Reduces reflected power and protects the transmitter
- Simple plug‑and‑play with USB power