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Icom AT-140 Automatic Antenna Tuner for M802 & M803 Marine SSB Radio

Manufacturer

Icom

<h3>Icom America: Trusted Leaders in Marine &amp; Wireless Communication</h3><p>When reliability on the water is non-negotiable, professionals and recreational boaters alike turn to <strong>Icom</strong>. Backed by decades of engineering expertise, Icom has earned its reputation as one of the most respected names in radio communications worldwide. <a href="/7392-icom">Icom America</a> was established in 1979 as the North American arm of Icom Incorporated, a company that has been designing and manufacturing advanced, compact solid-state radio equipment since 1954.</p><p>Headquartered in Bellevue, Washington, Icom America serves a remarkably broad range of markets — from recreational marine and aviation to land mobile, amateur (ham) radio, and government communications. What sets Icom apart is not just the breadth of its catalog, but its consistent track record of innovation. The company pioneered some of the industry&apos;s most significant milestones, including one of the first radios built with a CPU and detachable front panel, and the world&apos;s first fully floating submersible VHF marine handheld radio.</p><h3>Setting the Standard in Marine VHF Communication</h3><p>Icom&apos;s dominance in the marine communications segment is well established. <a href="/7392-icom-vhf-radios-fixed-mount-201142">Fixed-mount VHF radios</a> from Icom — such as the IC-M510 and IC-M410BB — are engineered to deliver clear, dependable communication aboard everything from small fishing boats to large commercial vessels. These radios consistently earn top marks for receiver sensitivity, audio quality, and feature sets that include Class D DSC, NMEA 2000 connectivity, color displays, and integrated hailer functions. Whether you&apos;re navigating a harbor or calling for assistance in an emergency, Icom&apos;s fixed-mount radios are built to perform when it counts most.</p><p>For boaters who need communication freedom away from the helm, <a href="/7392-icom-vhf-radios-handheld-201143">handheld VHF radios</a> round out Icom&apos;s marine lineup. Icom was a pioneer in producing highly compact handheld marine transceivers that are submersible, GPS-equipped, and — in a breakthrough introduced with the IC-M34 — designed to float. Today&apos;s handheld lineup continues that legacy with rugged, waterproof designs built to MIL-STD specifications, making them equally at home on a kayak, sailboat, or offshore cruiser.</p><h3>A Complete Communications Ecosystem</h3><p>Icom understands that a great radio is only as reliable as the system supporting it. That&apos;s why the brand also offers a well-rounded selection of supporting products. Proper antenna cabling is essential for maximum radio performance, and Icom&apos;s coax cable and extensions are designed to maintain signal integrity between your antenna and transceiver. For keeping your gear organized and your radio protected, <a href="/7392-icom-electronics-parts-accessories-200363">electronics parts and accessories</a> — including microphones, mounting hardware, and remote control components — allow boaters to customize and expand their communication setup.</p><p>Rounding out the ecosystem, Icom&apos;s lineup of <a href="/200141-battery-chargers-icom-7392">battery chargers</a> ensures that handheld radios are always powered and ready for use. From single-unit desktop chargers to multi-bay rapid-charge systems, Icom engineers their BC-series chargers specifically for compatibility with their own battery packs, ensuring optimal charge cycles and long battery life.</p><h3>Why Boaters and Professionals Choose Icom</h3><ul style="list-style:disc"><li><strong>Proven Innovation:</strong> Decades of industry firsts in marine and radio communication technology.</li><li><strong>Rugged Reliability:</strong> Products tested to MIL-STD standards for harsh marine environments.</li><li><strong>Wide Compatibility:</strong> Integrated accessories and chargers designed to work seamlessly with Icom radio systems.</li><li><strong>Broad Coverage:</strong> A product lineup spanning marine, aviation, land mobile, and amateur radio markets.</li></ul><p>Whether you&apos;re outfitting a center console for offshore fishing, equipping a commercial vessel, or simply want peace of mind on weekend cruises, Icom delivers the communication clarity and durability that serious mariners demand.</p>

Part Number

AT140
09/12/2036 8:12 AM
Sale Price

$600.53

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Icom AT-140 is an automatic antenna tuner designed specifically for use with Icom M802 and M803 marine SSB radios. This weatherproof tuner automatically matches your antenna to the operating frequency, ensuring optimal performance for voice communications, email, and shortwave listening across the entire HF spectrum.

Key Features:

  • Automatic antenna tuning in approximately 2-3 seconds for fast frequency access
  • 45 memory channels store tuning settings for faster retuning on previously used frequencies
  • Completely weather-resistant acrylic case with rubber gaskets for marine environments
  • Quick low-power tune-up minimizes on-air tuning time
  • Pre-wired cable connections for simple plug-and-play installation
  • Maximum input power: 150W PEP, 100W continuous
  • SO-239 antenna connector for standard marine antenna connections

The AT-140 is designed for installation near the antenna element base and automatically bypasses during receive mode, allowing use of the entire antenna for best reception performance. When connected to your M802 or M803, you'll enjoy seamless frequency changes without missing critical communication opportunities.

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