Description
4' AIS Antenna | 4.5dB Gain | Boat Supply Store
Ensure regulatory compliance and enhanced vessel awareness with this USCG-compliant 4-foot AIS antenna, engineered for superior signal reception and transmission. It delivers a robust 4.5dB gain across the critical 159-162 MHz frequency range, maintaining an excellent 1.5:1.0 SWR ratio for optimal performance. Constructed with premium materials and featuring a factory-attached mini-UHF connector with a PL-259 adapter, this antenna is built for durability in harsh marine environments, making it ideal for commercial operations or serious recreational boaters navigating busy waterways.
Key Features
- 4' Length for optimal performance and mounting flexibility.
- 4.5dB Gain ensures superior signal transmission and reception.
- Low 1.5:1.0 SWR ratio across 159-162 MHz guarantees efficient power transfer.
- Gold factory-attached mini-UHF female connector with PL-259 adapter for hassle-free connectivity.
- Includes 25' of low-loss RG-8X marine cable for versatile installation.
- Made in the USA with premium materials for extended service life.
- Powerful brass radiators and soldered connections ensure signal integrity.
- High gloss urethane finish provides exceptional resistance to UV and saltwater degradation.
Specifications
| Product Specifications | |
|---|---|
| Length | 4' |
| Gain | 4.5dB |
| Frequency Range | 159-162 MHz |
| SWR Ratio | 1.5:1.0 |
| Connector | Gold factory-attached mini-UHF female with PL-259 adapter |
| Cable | 25' RG-8X marine cable |
| Material | Premium materials |
| Finish | High gloss urethane |
| Ferrule | 316 stainless steel |
| Series | 500 GOLD Series |
Who This Is For
Commercial vessel operators and recreational boaters requiring a reliable and compliant AIS antenna to meet USCG Automatic Identification System requirements. This antenna is designed for mariners prioritizing robust communication and collision avoidance capabilities.
How It Compares
| Feature | 4' AIS Antenna | 4.5dB Gain | Competitor |
|---|---|---|
| Length | 4' | 4', 4' |
| Gain | 4.5 dB | 3 dB, 3 dB |
| Frequency Range | 159-162 MHz | 159-162 MHz, 159-162 MHz |
| SWR Ratio | 1.5:1.0 | Less than 2.0:1, Less than 1.5:1 |
| Connector | Gold factory-attached mini-UHF female with PL-259 adapter | PL-259, SO-239 |
| Cable Included | Yes, 25' RG-8X | No, No |
| Made in USA | Yes | Yes, Norway |
Common Concerns Answered
Can this antenna be returned to the point of purchase if there is an issue?
No, the product may not be returned to the original point of purchase; customers must contact the manufacturer directly for warranty claims or technical support.
Is the included cable length sufficient for all installations?
The antenna includes 25' of RG-8X marine cable, which is standard for many installations. However, some users may require a longer cable run depending on their vessel's specific layout and the antenna's mounting location.
What if I experience issues with the antenna?
For any product issues, you will need to contact the manufacturer directly, as returns to the original point of purchase are not permitted.
Frequently Asked Questions
What is the SWR ratio of the Digital Antenna 578-SW?
The Digital Antenna 578-SW features a low SWR ratio of 1.5:1.0.
What is the gain of the Digital Antenna 578-SW?
The antenna offers a gain of 4.5dB.
What type of connector does the Digital Antenna 578-SW use?
It utilizes a gold factory-attached mini-UHF female connector which comes with a PL-259 (UHF) adapter.
Does the Digital Antenna 578-SW come with cable?
Yes, the antenna includes 25' of RG-8X marine cable.
Is the Digital Antenna 578-SW made in the USA?
Yes, the Digital Antenna 578-SW is manufactured in the USA.
