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Icom AT-230

Automatic Tuning Antenna
2.6m (8.5ft) length mobile mount whip antenna covers 2-30 MHz with automatic tuning function. Continuous CW transmission at high power not guaranteed with AT230. For ICOM IC-F7000, IC-F8100 radios
Replacement model: AT140 + OPC2142
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Item SKU Number:  008877
Manufacturer Part Number:  AT230, AT 230, AT-230
FCA point / Shipped from:  USA 
 Download Free Materials:
  
Adobe Acrobat Reader Moonraker_at230.pdf (46.30 KB)
 Item Details:
 Icom at-230 automatic tuning system

ICOM AT-230 Automatic Tuning System

The AT-230 is an automatic tuning system from Moonraker Pty.  Ltd for multi-frequency HF mobile and base station communications.

It is designed to provide push-button microprocessor controlled continuous tuning from 2~30MHz from the IC-F7000, without the use
of an automatic antenna tuner unit.

The AT-230 is a perfect item to complement the IC-F7000 for  communication in environments from the desert to the jungle. Built
tough and the ability to be installed easily to all types of vehicles, your  HF land mobile communication requirements are fully met.

FEATURES:

  • Automatic tuning of all frequencies between 2~30MHz
  • Tuning is possible while vehicle is moving
  • Wide-band HF amplifier built-in to enhance weak reception of weak signals
  • Tuning time between channels is 1-2 secs. (Depending on channel separation)
  • Rugged construction with all control devices housed in lower section of the antenna
  • Top whip element is removable for easy storage or easy parking of the vehicle in a garage
    Automatic tuning antenna system for multi-frequency HF radio mobile and base station communications
    Designed to provide automatic microprocessor controlled continuous tuning from 2 to 30 MHz from
    the transceiver without the use of an antena tuning unit (ATU).

    The Moonraker Type AT230 Auto Tune antenna system is comprised of a 2.55m whip
    (8.4ft) together with the AT104 antenna control unit (ACU). Typical tuning time for one
    channel frequency to another is 1 to 2 seconds with maximum time dependent upon
    channel separation.

    The system is fully automatic and on installation no further tuning or technician
    programming is required. It is robust, reliable and extremely rugged and has passed
    extensive testing in off road remote conditions, including tropical jungles and arid
    environments, as well as populated areas. The whip may be mounted low down on
    the vehicle behind the bull bar, on the bumper bar or even on the tow bar, and
    relatively close to the body work on forward control vehicles and buses.

    Construction is of anodised aluminium alloy tubing with a sealed lower section
    housing the control devices, mid section and stainless steel whip top section, which
    may be easily removed to facilitate garaging. Centre loading is utilised for maximum
    performance and a wide band HF amplifier, located in the antenna base section and
    operated via the ACU, provides enhanced reception of weak signals, particularly
    when the receiver is in scan mode.

    The ACU, the interface between the antenna and the transceiver, contains the sensor
    and controlling electronics. It is compatible with even basic transceiver types that are
    able to provide continuous RF for tuning purposes by arranging the ACU to control the
    transceiver using a remote PTT line, an external initiate switch and an audible tuning
    indicator. Fully automatic operation is possible with more sophisticated transceivers.
    It can be installed in any convenient position in the vehicle other than the engine bay
    or can be used up to 20m (65.6ft) from the antenna for base station installations.

    SPECIFICATIONS

    Frequency Range Any frequency between 2-30 MHz
    Channel Capacity Infinite between 2-30 MHz, continuously variable
    Length With whip top: 2.55 metres (8.4 ft); with whip top removed: 1.3m (4.2ft)
    Pattern Omnidirectional
    Polarisation Vertical; part horizontal (NVIS) possible
    Input Impedance 50W (nominal)
    VSWR 1.9:1 (typically 1.3:1)
    Power Rating 140w PEP
    Power Consumption Static: 100mA; tuning: 2A (typical); 12v DC nominal
    Mountings (Antenna) Anti-vibration mount, 12mm zinc plated steel stud, 30mm (1.2 in)
    long, supplied with nut and washers
    Packed Weight Antenna and control unit: 6 kg (13.2 lbs)

     



 Manufacturer's Catalogs and Guides:

These files contain information about the available products from the manufacturer. If you need something that is not on our website, please contact us. We will help you purchase the desired product at a low price.

Icom Land Mobile Equipment Catalog
Land Mobile Equipment Catalog

Published Date: August 2025
Icom Marine Equipment Catalog
Marine Equipment Catalog

Published Date: August 2025
Icom Avionics Equipment Catalog
Avionics Equipment Catalog

Published Date: April 2026
Icom Network Product Catalog
Network Equipment Catalog

Published Date: August 2025
Icom Amateur Equipment Catalog
Amateur Equipment Catalog

Published Date: April 2026
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Marine Two-Way Radios

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Icom Aircraft Products
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Whether you're in the air or on the ground, trust Icom to keep you in touch before flight
Icom Amateur HAM Radio Product Catalog 2023
HAM Radios and Receivers

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The Icom logo is a registered trademark of Icom Inc.Icom America Inc. designs, engineers, and manufactures wireless radio communications equipment and products for marine, avionics, land mobile, and wide-band receiver industries. The company offers amateur radios, including base stations, mobile, handheld, D-Star, and receivers; avionics, including handheld mobile and panel mount; mobiles, including IDAS, P25, network/RoIP, and data/HF; and handheld devices for marinas, large yachts, and various commercial vessels. It also provides custom-build and off-the-shelf radio systems. The company serves federal, state, and local government agencies.

The Icom logo is a registered trademark of Icom Inc.





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