Shakespeare 399-1M 8 ft 2-Piece VHF Antenna for Mast Mounting
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Shakespeare 399-1M — 8 ft 2-Piece VHF Antenna for Mast Mounting
The Shakespeare 399-1M is an 8-foot, 2-piece VHF antenna engineered specifically for masthead installation on sailboats. Mounting your VHF antenna at the top of the mast gives you the maximum possible antenna height — and with VHF radio, height is range. The 2-piece design makes it practical to run the antenna up the mast and assemble it in place, while the mast-mount configuration keeps your deck clear and your signal unobstructed in all points of sail.
Key Features
- 8 ft (96") overall length — full-size antenna for maximum VHF range
- 2-piece construction for easy mast installation and cable routing
- Designed specifically for masthead mounting on sailboats
- Tuned for the international VHF marine band (156–163 MHz)
- Durable fibreglass construction rated for permanent offshore exposure
- Standard connection compatible with coaxial cable feed through the mast
Parts Desk Insights
Best use case: The 399-1M is the right choice for sailors who want to maximize VHF range by mounting their antenna at the masthead rather than at deck level. Masthead height on most sailboats puts the antenna 50–60 ft above the waterline, which can more than double effective VHF range compared to a deck-mounted antenna. It’s particularly well suited for offshore and coastal passage-making where range to coast stations and other vessels matters. If you’re also running an AIS receiver or transponder, consider pairing this antenna with the Shakespeare 5257-S VHF/AIS Antenna Splitter to share a single masthead antenna between your VHF radio and AIS unit. Alternatively, the Shakespeare Phase III 6225-R is an 8 ft antenna with built-in VHF/AIS capability if you prefer a combined solution. For maximum range on a powerboat or commercial vessel, see the Shakespeare 4018 16 ft 9 dB VHF Antenna.
Part Number: 399-1M
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.