New
HF/50 MHz AUTOMATIC ANTENNA TUNER

AH-6

Lightweight & Compact Antenna Tuner Compatible with Both Long Wire and 50 Ω Antennas

Features

Wide Frequency Coverage

Provides matching across all bands from 1.8 MHz (160 m) to 50 MHz (6 m)*, enabling efficient multiband operation with a single wire antenna. Ideal for portable and field operations where quick antenna setup is essential.

 Wire length requirements: 1.8 MHz band: 30 m  (65.6 ft) or more, 3.5 MHz band and above: 7 m (23 ft) or more. A ground connection is required. Tuning may not be possible, depending on the environment and conditions.

SO-239 Antenna Connector for 50 Ω Antenna

The SO-239 antenna connector provides a direct connection to a 50 Ω antenna. Both long wire and 50 Ω antennas, such as verticals and dipoles, can be used* and are selectable with a switch.

 Do not connect two antennas at the same time to prevent damage to the antenna tuner during transmission.

Compact & Lightweight Body for Portable Operation

The same compact size as the AH-4, 50%* smaller and lighter than the AH-730. Cables can be connected without opening the cover, enabling quick and easy installation.

Approximately

High Speed Tuning

Simply press the "TUNER" switch on the connected transceiver for fully automatic tuning in 2–3 seconds. The 200-channel memory stores matching settings, enabling re-tuning at the same frequency in approximately one second.

Minimized Interference During Tuning

During tuning, the AH-6 reduces RF output to approximately 0.3 W through the attenuator, minimizing interference with other stations.

IP54 Rugged Construction for Outdoor Installation

The body is made of a high-rigidity resin. With a water-resistant structure that includes waterproofing, weather resistance and protection against salt damage, it can be safely installed in various outdoor locations.

Supplied Accessories

  • Control cable OPC-1465 (10 m, 32.8 ft)
  • Mounting kit (U-bolts and plates)

Specifications

Frequency coverage

Wire antenna 1.8 MHz ~ 54 MHz (with a 30 m, 98.4 ft or longer)
3.5 MHz ~ 54 MHz (with a 7 m, 23 ft or longer)
50 Ω antenna 1.8 ~ 54 MHz (16.7 ~ 150 Ω)
Maximum input power 120 W
Tuning power required 5 ~ 15 W (10 W rated)
Input impedance 50 Ω
Power supply requirement 13.8 V DC±15% (supplied from transceiver)
Current drain 0.6 A or less
Tuning accuracy VSWR 2.0 : 1 or less
(except for multiples of ½λ)
Number of memory channel 200 ch
Tuning time Average 2 to 3 seconds (maximum 15 seconds)
Operating temperature range –10°C ~ +60°C; +14°F ~ +140°F
Weight 1.25 kg; 2.75 lb (approximately)
Dimensions (W×H×D, projections not included) 172 × 230 × 71 mm; 6.8 × 9.1 × 2.8 in

Applicable IP Rating

Ingress Protection Standard
IP rating IP54 (Dust-protection and water resistant)

All stated specifications are subject to change without notice or obligation.

Panel View

Optional Accessory

SHIELDED CONTROL CABLE

  • AH-6
    New
    HF/50 MHz AUTOMATIC ANTENNA TUNER

  • OPC-1465
    SHIELDED CONTROL CABLE

Catalogs / Brochures

Instruction Manual / Guides