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Description
Digital Antenna 578-SB 4' AIS AntennaAIS 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 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.
Manufacturer Part Numbers: 578-SB
Quick Guide (PDF)
Installation Guide (PDF)
GRP:WRO
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Impressed with the hold!
Pattern Name: Noble（12 Sets）
These were a hit at my daughter’s 5th birthday party! Mermaid themed and all the guests got to wear these jeweled face masks and they lasted the entire party! Great stick and lasted longer than I expected!
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Love
Pattern Name: Elegant（12 Sets）
Exactly what I needed
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Bling for your face.
I got these to use for Halloween. They were a big hit and oh so very pretty. We all love them and there’s so many to choose from.
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Reviewed in the United States on November 11, 2025
★★★★★ 5
Looks fun
Pattern Name: Graceful（12 Sets）
Will use these for Mardi Gras. Colors are great.
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Reviewed in the United States on February 13, 2026
★★★★★ 5
Perfect single ingredient dog treat!
Size: 14 Ounce (Pack of 1), Size: 14 Ounce (Pack of 1)
Superb quality! We are repeat customers and keep coming back for this delicious, single ingredient dog treat. My golden gets excited every time a new pack is opened and I feel comfortable giving him then as they’re the perfect size, always fresh and are great for his teeth too!
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Reviewed in the United States on February 4, 2026