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Green PCB antenna tuner board with components and connection cable

ARCTIC

ARCTIC ATU-100Maximum 2 in 1 accessory

SKU CH-N60C-P9YZ9 MPN ATU-100Maximum

Automatic antenna tuner board covering 1.8-50MHz with 7 inductors and 7 capacitors for SWR matching

  • Automatic tuning across 1.8-50MHz frequency range
  • 7 inductors and 7 capacitors for flexible matching
  • 400mA current draw keeps power needs low
  • Inductance adjustable from 0.05uh to 8.53uh
  • Capacity range 10pf to 1869pf covers wide impedance

Automatic antenna tuner board

The ATU-100Maximum is a compact automatic antenna tuner board covering 1.8 to 50 MHz. It uses seven inductors and seven capacitors to match a wide range of impedances. Power measurement steps are 0.1 watts below 10 watts and 1 watt above, with 10 percent accuracy. Current draw is 400 mA.

Who this suits and who it does not

Radio operators needing fast, automatic matching on HF bands will find it useful. Builders who require a ready-made enclosure, integrated display or higher power handling should look at other solutions.

Key specification that decides fit

The tunable inductance range spans 0.05 µH to 8.53 µH and capacitance from 10 pF to 1869 pF. These limits determine whether your antenna system falls within the matching range.

Highlights

  • Automatic tuning across 1.8-50MHz frequency range
  • 7 inductors and 7 capacitors for flexible matching
  • 400mA current draw keeps power needs low
  • Inductance adjustable from 0.05uh to 8.53uh
  • Capacity range 10pf to 1869pf covers wide impedance

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the ATU-100Maximum is tuning correctly after installation?

Watch the power measurement display; below 10 watts it reads in 0.1 watt steps, above 10 watts in 1 watt steps with 10% accuracy, showing a match across 1.8-50MHz.

What comes in the package and what extra items are needed?

The box contains the tuner motherboard, a connection line and the module; you must supply a 400 mA power source, coaxial feed-line and an antenna separately.

Which inductance and capacitance range suits my band requirements?

The board provides 0.05 to 8.53 µH inductance and 10 to 1869 pF capacitance across seven switched inductors and seven switched capacitors.

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