SKU: 92262082344

Digital Antenna 578-SW 4 AIS Antenna [578-SW ]

Sale price$122.82 Regular price$136.47
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

Digital Antenna 578-SW 4 AIS Antenna [578-SW ]AIS Antennas 4' 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

AIS Antennas
4' 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.

Specifications:

  • Antenna Band: AIS
  • Color: White
  • Construction: Fiberglass
  • Ferrule Type: Stainless Steel
  • Length (Inches): 48"
  • Box Dimensions: 3"H x 3"W x 50"L WT: 3.2 lbs
  • UPC: 839494001619

Quick Guide (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 92262082344

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alfred montes jr.
Belleville, US
★★★★★ 3
Buttons
Size: King, Color: Dark Grey
Here's what I like: Appearance. I like the color and how it looks on my bed. It looks appropriate for a king sized bed. Removable cover. It was easy to take the cover off and wash, which I appreciate because I like my bedding to smell fresh and clean. What I don't like: It is a bit softer than I would like. But I can live with it. I thought it was a foam pillow inside, not fill. Maybe my fault though for not reading description or reviews. Quality. This is the biggest issue driving the rating. I removed the over upon opening the item so I could wash it. The buttons are attached the the inside cover. When removing the outside cover, you have to unbotton them. They are not secured well at all. From what I can tell the threading goes through the inside cover through the fill to the button on the opposite side. I suspect this because 4 buttons came off when I removed the outside cover. They are very loosely secured to each other. Be gentle when removing and replacing the cover. Now I will have to thread the buttons again and secure it. Just a pain for a brand new item. Should I expect that for the cost of the item? I dunno. Could have been a higher rating, but, damn those buttons.
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Reviewed in the United States on December 21, 2025
R
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Rafe Olson
West Palm Beach, US
★★★★★ 5
Nicer than the pictures!
I bought this for my wife for Christmas and it’s been a game changer for watching TV in bed. I was always having to double up on pillows and having to adjust them because they’re down and kinda deflate lol. The green color is super pretty too! Quality so far has been really good!
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Reviewed in the United States on May 26, 2026
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Sonja Foster
Los Angeles, US
★★★★★ 5
Huge, super soft, cozy pillow!
Size: Jumbo (25-Inch), Color: Sage
This pillow is awesome! As a plus size person who can't sleep laying flat, the size and support level is perfect. This pillow is huge! The quality is very high, the stitching is precise, and the sage green material is soft and cozy. Great value for the price! I highly recommend this reading pillow!
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Reviewed in the United States on May 28, 2026
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GN
Louisville, US
★★★★★ 5
MUST BUY Item for Breastfeeding Moms
Size: Standard (18-Inch), Color: Dark Grey
MUST GET item for breastfeeding moms. It is a soft pillow with a removable washable cover. The material is like a suede, which can make it hot to lean on if you typically feel hot when breastfeeding or sleeping. It allows you to sit up straight while in bed with great support.
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Reviewed in the United States on May 1, 2026
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Ms. Rea
Omaha, US
★★★★★ 5
It's perfect support.
Size: Extra Back Support (21-Inch), Color: Dark Grey
The best way to describe the super comfy reading pillow is super comfy. I use it to sit up while watching something soothing to my mind on tv and due to its comfyness and softness, it's perfectly just right for my back. The funny thing is within a few minutes I'm knocked out sleep, which is a good thing. It's soft but firm lumbar area and arms feels oh so comfortable. It gives the best sleep quality and less toss and turning. I highly recommend.
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Reviewed in the United States on May 7, 2026

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