Sea-Dog Adjustable Marine Antenna Base Chrome/Zinc | SED-329300-1
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You have 30 days to request a return. All sale items are final sale.
Adjustable Marine Antenna Base — Chrome/Zinc | SED-329300-1
Mount your VHF or marine radio antenna with confidence using this Adjustable Marine Antenna Base in a durable chrome-over-zinc construction. Designed for permanent deck or rail mounting, this adjustable base allows you to fine-tune antenna angle for optimal signal transmission and reception — critical for reliable VHF communication, AIS performance, and safety at sea. The chrome/zinc finish delivers a premium, corrosion-resistant appearance that holds up in the harshest saltwater environments.
Key Features
- Adjustable angle — allows the antenna to be tilted and locked at the optimal angle for your vessel’s mounting location, compensating for deck camber, rail angle, or mast rake
- Chrome-over-zinc construction — die-cast zinc base with chrome plating delivers excellent corrosion resistance, structural rigidity, and a polished, professional finish
- Universal antenna compatibility — standard thread fitting compatible with most VHF, AIS, and marine radio antennas
- Secure deck or rail mount — robust base plate designed for permanent installation on deck, cabin top, or rail mount applications
- Low-profile design — keeps the antenna close to the mounting surface for a clean, seamless installation
Ideal For
VHF radio antennas, AIS antennas, and marine communication antennas on sailboats, powerboats, and commercial vessels where a fixed-angle mount is not suitable due to deck geometry or rail angle. An essential fitting for any new antenna installation or replacement of a worn or corroded base.
Installation Notes
- Seal all deck penetrations with a marine-grade sealant (e.g. Life-Calk or 3M 4200) to prevent water ingress
- Use a coaxial cable with the correct connector type for your antenna and VHF radio
- Ensure the base is grounded correctly if required by your antenna manufacturer
- Tighten the adjustment lock firmly after setting the desired angle to prevent movement underway
Product Details
- Material: Chrome-over-zinc die cast
- Type: Adjustable antenna base
- Application: VHF, AIS, and marine radio antennas
- SKU: SED-329300-1
- Vendor: WEST
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.