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AIS Antennas4' Length, 4.5dB Gain
In conjunction with the USCG Automatic Identification System (AIS) requirements for commercial vessels, Digital Antenna created a series of 4 AIS antennas that meet the exacting AIS frequency requirements. Designed with a low 1.5:1.0 SWR ratio from 159-162 MHz, Digital Antennas 4.5 dB gain AIS antennas offer unsurpassed durability and performance compatible with all AIS transponders.
Customers and installers love the 500 GOLD Series easy installation connector system. The gold factory-attached mini-UHF female connector with PL-259 (UHF) adapter makes connecting to the AIS transponder easy, eliminating the need to solder connectors.
All of our antennas are made in the USA, assembled, tested and tuned by hand for maximum performance, quality and durability.
All 4' AIS Antennas Feature:
- Powerful brass radiators
- Soldered connections
- Power directing ferrite choke bead
- High gloss urethane finish
- 316 stainless steel ferrule
- 4.5dB gain
500 GOLD Series
- Mount: Standard 114 threaded base
- Connector: Gold factory-attached mini-UHF female with mini-UHF male to UHF male (PL259) adapter
- Cable: Includes 25 of our low-loss, tinned braid, foil shielded, UV stable RG-8X marine cable
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
The Digital Antenna 578-SW 4-Foot AIS Antenna is designed for commercial vessels and marine installations using Automatic Identification System equipment. With 4.5 dB gain and a low 1.5:1.0 SWR ratio across the 159–162 MHz AIS frequency range, this antenna provides a purpose-built connection for AIS transponders. Its durable construction and factory-attached connector system help simplify installation while supporting dependable marine communications.
The 500 GOLD Series features a gold factory-attached mini-UHF female connector with a mini-UHF male to UHF male PL-259 adapter, eliminating the need to solder connectors during installation. The included 25-foot RG-8X marine cable uses a low-loss, tinned braid and foil shield with UV-stable construction for practical onboard routing. A standard 114 threaded base supports installation with compatible mounting hardware.
Built for demanding marine use, the Digital Antenna 578-SW includes powerful brass radiators, soldered connections, a power-directing ferrite choke bead, a high-gloss urethane finish, and a 316 stainless steel ferrule. Each antenna is made in the USA, assembled, tested, and tuned by hand for performance, quality, and durability. It is compatible with all AIS transponders and is well suited for vessel owners, marine electronics installers, and commercial marine applications.
Key Features:
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4.5 dB gain: Supports AIS antenna performance across the designated marine frequency range.
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Low 1.5:1.0 SWR ratio: Tuned for 159–162 MHz AIS frequencies.
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500 GOLD Series connector system: Includes a factory-attached mini-UHF female connector and PL-259 adapter to simplify installation without soldering.
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Durable marine construction: Includes brass radiators, soldered connections, a ferrite choke bead, urethane finish, and 316 stainless steel ferrule.
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Included marine cable: Provides 25 feet of low-loss, tinned braid, foil-shielded, UV-stable RG-8X cable.
Product Details:
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Brand: Digital Antenna
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Model: 578-SW
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Type: AIS antenna
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Length: 4 feet
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Gain: 4.5 dB
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Frequency range: 159–162 MHz
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Mount: Standard 114 threaded base
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Country of manufacture: Made in the USA
Important: This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
Choose the Digital Antenna 578-SW for a professionally constructed AIS antenna package designed for straightforward installation and dependable marine use.
SEO Meta Description: Shop the Digital Antenna 578-SW 4-foot AIS antenna with 4.5 dB gain, 25-foot RG-8X cable, and easy-connect 500 GOLD Series hardware.
Features:
- 4.5 dB gain AIS antenna designed for 159–162 MHz marine frequencies
- Low 1.5:1.0 SWR ratio for AIS applications
- Factory-attached mini-UHF connector with PL-259 adapter for solder-free installation
- Durable construction with brass radiators, soldered connections, ferrite choke bead, urethane finish, and 316 stainless steel ferrule
- Includes 25 feet of low-loss, tinned braid, foil-shielded, UV-stable RG-8X marine cable
- Made in the USA, assembled, tested, and tuned by hand
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| Truck Freight: No |
| Oversized: No |
