Introducing the Digital 594-MW-S 4ft White AIS Antenna—the ultimate single-antenna solution for peak AIS and VHF performance on digital networks. Built to maximize transmit and receive range, this 4.5 dBi omni-directional antenna delivers reliable, broad coverage on the water.

Key benefits

• Designed for Digital AIS/VHF signals with 4.5dBi omni-directional gain for consistent range in all directions.
• Exceptional durability featuring a rugged fiberglass rod with a UV-stable white polyurethane high-gloss finish.
• Secure, high-quality mounting 316 stainless steel base with a 1" x 14 TPI female threaded base for dependable installation.
• Low-loss connection includes a 15 ft premium RG-8X cable for minimal signal loss.
• Quick, solder-free setup factory-installed mini-UHF connector with PL259 adapter for fast integration with your radio.
• Digital-optimized performance SWR < 1.5:1 across 56–162.5 MHz (AIS 162 MHz and VHF 156 MHz), ensuring strong transmit and receive capability.
• Broad compatibility impedance of 50 ohms and 50 W max input power, ideal for both commercial and recreational vessels.
• Effortless installation 4' length, 1" diameter, hand-soldered brass elements for reliability in demanding conditions.
• Versatile on any vessel perfect for use with combined VHF/AIS radios, on boats of all sizes.
• Weather-ready design withstands winds over 160 kph and operates from 30°F to 175°F.
• Peace of mind backed by a 5-year warranty.

Performance & construction

The 594-MW-S is engineered to maximize digital AIS and VHF range without sacrificing reliability. Its omni-directional pattern ensures consistent performance as you maneuver, while the high-strength fiberglass rod and UV-stable finish resist harsh marine conditions. A 316 stainless steel base provides rugged support, and the included low-loss RG-8X cable minimizes signal loss over distance. The antenna is designed for quick, solder-free connections to your radio thanks to the factory-installed mini-UHF connector and PL259 adapter.

Specifications

• Radiation Pattern: Omni-Directional
• Gain: 4.5 dBi
• Band: 56–162.5 MHz (6.5 MHz bandwidth)
• Cable: 15 ft Digital Antenna exclusive low-loss RG-8X
• Impedance: 50 ohms
• Max Input Power: 50 watts
• Exterior Finish: White polyurethane high gloss UV stable
• Dimensions: 4 ft length x 1" OD
• Weight: 1.7 lbs
• RF Connector: Mini-UHF female with PL259 adapter included
• Base: 1" x 14 tpi female threaded
• Elements: Brass - Hand soldered
• Polarization: Vertical
• Wind Rating: >160 kPH
• Operating Temp: 30°F to 175°F
• Warranty: 5 Years
• Compliance: Automatic Identification System (AIS)

Designed to deliver top-tier AIS/VHF performance on both digital networks and traditional channels, the Digital 594-MW-S 4ft AIS Antenna is the reliable choice for sailors, commercial operators, and recreational boaters seeking seamless connectivity and long-lasting build quality.