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Digital Antenna 578-SB 4' AIS Antenna - 578-SB
Digital Antenna 578-SB 4' AIS Antenna - 578-SB
Digital Antenna 578-SB 4' AIS Antenna - 578-SB
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Digital Antenna 578-SB 4' AIS Antenna - 578-SB

Marsoni M251S
Sale price$148.00
Pay 4 payments of $37.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Digital Antenna 578-SB 4' AIS Antenna - 578-SBAIS 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
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
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A
Verified Purchase
A customer
Pawtucket, US
★★★★★ 4
reading this helped me pass the A+ core windows 1 exam and security plus
Format: Paperback
Problem is that I am 63 years old having earned the certificate and the industry doesn't seem to welcome older workers . I used to help maintain a fleet of printers at two large companies. I have read about other more experienced tech workers in their 50s getting jobs now working in pharma working at sterilization technicians because IT seems to be puking jobs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
K
Verified Purchase
koleya
Pawtucket, US
★★★★★ 5
Good for Exam
Format: Paperback
Very helpful, covers test materials and is a good resource.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
N
Verified Purchase
Nate
Cuba, US
★★★★★ 2
Incomplete
Format: Paperback
Only received three of the four volumes. Did not receive the core 1 study guide.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025
P
Verified Purchase
Pete Gallagher
Dallas, US
★★★★★ 5
Very detailed
Format: Paperback
Great info. Definitely a great purchase
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
N
Nathan
Belleville, US
★★★★★ 5
These are the actual reference books.
Format: Paperback
The actual books for the actual tests. You Need these if you want to study and pass the Comptia A+ exams. Legit the real deal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026

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