578SW - Digital Antenna Digital 578SW 4ft AIS Antenna | Aztek Computers
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SKU: LFDFHSOUZU |  Mfg. Part: 578SW  | UPC: 839494001619  |  0 Reviews  |     Share

578SW - Digital Antenna Digital 578SW 4ft AIS Antenna

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Condition: New

$290.39  $392.03
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Product Overview

<font face="Arial" size="2 in>In conjunction with the USCG Automatic Identification System (AIS) requirements for commercial vessels, Digital Antenna created a series of 4 feet AIS antennas that meet the exacting AIS frequency requirements. Designed with a low 1.5:1.0 SWR ratio from 159-162 MHz, Digital Antenna's 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 Digital antennas are made in the USA, assembled, tested and tuned by hand for maximum performance, quality and durability.

Features:

Powerful brass radiators
Soldered connections
Power directing ferrite choke bead
High gloss urethane finish
316 stainless steel ferrule
4.5dB gain
500 GOLD Series: 578-SW

Mount: Standard 1 in-14 threaded base
Connector: Gold factory-attached mini-UHF female with mini-UHF male to UHF male (PL259) adapter
Cable: Includes 25 feet of our low-loss, tinned braid, foil shielded, UV stable RG-8X marine cable



















Expert Overview

The Digital Antenna 578SW is a 4-foot AIS antenna designed for commercial vessels requiring compliance with USCG Automatic Identification System (AIS) regulations. This antenna operates with a low 1.5:1.0 SWR ratio across the 159-162 MHz frequency range, making it suitable for all AIS transponders. It features 4.5 dB gain and is constructed with powerful brass radiators, soldered connections, and a 316 stainless steel ferrule for durability. The high gloss urethane finish provides protection in marine environments. Installation is simplified by a gold factory-attached mini-UHF female connector, which includes a PL-259 (UHF) adapter, eliminating the need for soldering. Each unit is hand-assembled, tested, and tuned in the USA to ensure consistent performance. This product is intended for IT and marine professionals seeking a reliable and compliant AIS antenna solution.

Product Details

  • Manufacturer:
  • Model Number:
  • UPC:
  • Condition:
  • Weight:
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  • Updated:
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  • Digital Antenna
  • 578SW
  • 839494001619
  • New
  • 4 lbs
  • 5 X 5 X 5
  • Jul 24, 2026
  • Jun 10, 2026
Product Identifiers: Brand: Digital Antenna • Part #: 578SW • UPC: 839494001619 • Category: Marine/Air Band Radio Antennas

Frequently Asked Questions

What is the SWR ratio of this antenna and what does it mean for performance?

The antenna features a low 1.5:1.0 SWR ratio from 159-162 MHz. A low SWR ratio indicates efficient power transfer between the antenna and the transponder, contributing to optimal performance within the specified frequency range.

What type of connector system does this antenna use, and what is included for connectivity?

The antenna utilizes a gold factory-attached mini-UHF female connector. It includes a mini-UHF male to UHF male (PL259) adapter, which simplifies connection to AIS transponders without requiring soldering.

Is this antenna compatible with all AIS transponders?

Yes, this antenna is designed to be compatible with all AIS transponders. Its low SWR ratio from 159-162 MHz meets the exacting AIS frequency requirements for commercial vessels.

What type and length of cable are included with the antenna?

The antenna includes 25 feet of low-loss, tinned braid, foil shielded, UV stable RG-8X marine cable. This cable is designed for marine environments and contributes to signal integrity.

578SW - Digital Antenna Digital 578SW 4ft AIS Antenna

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$290.39