AT-140 Automatic Antenna Tuner

AT-140 Automatic Antenna Tuner
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AT-140 Automatic Antenna Tuner

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Icom AT-140 is an automatic antenna HF tuner for use with IC-78, IC-M802, IC-M710, operating in the frequency range 1.6 ... 30 MHz, with a maximum output of 150 watts. The device is easy to use thanks to the automatic tuning: just press the TUNE button on the transceiver and it will immediately set the minimum SWR at any frequency in any sea HF range. Icom AT-140 is suitable for use on vessels of any size, even where it is impossible to use a long antenna due to limited space. The device is enclosed in a rugged, fully weatherproof case with a rubber gasket, which allows you to install it, both in the cockpit and on the deck.

  • Automatic configuration
  • Easy installation
  • High degree of security
  • Provides the possibility to use HF transceivers on small vessels
  • Save up to 45 frequencies


  • The maximum power is 150 W (PEP)
  • Frequency range 1.6-30 MHz
  • Power 13.6 VDC (powered by HF transceiver)
  • Consumption Max. 2 A
  • Operating temperature range -30 ° C ~ + 60 ° C
  • Weight 2.5 kg
  • Antenna connector type SO-239 (50 Ω)
  • The auto adjustment time is approximately 2-3 seconds. Max. 15 s (1 s for resetting to the stored frequency)

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