Shakespeare 4357S AM/FM & VHF Marine Band Separator
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
One Antenna. Three Signals. Zero Interference.
The Shakespeare 4357S AM/FM & VHF Marine Band Separator lets you run your AM/FM stereo and VHF radio simultaneously from a single antenna — no second antenna required, no signal degradation. It splits the incoming signal cleanly between both radios, so your VHF performance stays sharp while your stereo plays without dropout.
It ships ready to install with all cables and connectors pre-attached, making it a straightforward upgrade for any helm with limited antenna real estate or a clean-install aesthetic.
Key Features
- Operates AM/FM and VHF radios simultaneously from one antenna
- No interference with VHF radio performance
- Eliminates the need for a dedicated AM/FM antenna
- Includes 10 ft RG-62 AM/FM cable and 3 ft RG-58 VHF cable, connectors pre-installed
- Compact, marine-grade construction
Compatible Applications
- Any vessel with a single VHF antenna seeking to add AM/FM stereo reception
- Helm installations where a second antenna is not practical
- Compatible with Shakespeare VHF antennas including the Shakespeare 5309R Galaxy VHF Antenna, Shakespeare 5226-XT Galaxy 8 ft VHF Antenna, and Shakespeare 4018 16 ft 9 dB VHF Antenna
- Works with standard marine AM/FM stereos and VHF radios
Parts Desk Insights
Best use case: This band separator is the right solution for boaters who want stereo reception at the helm without drilling a second antenna hole or adding another mount to the hardtop. It's especially practical on smaller center consoles, cuddy cabins, and runabouts where antenna space is limited. If you're already running a Shakespeare VHF antenna like the 5215 Low-Profile Stainless VHF or the 5912 Flexible VHF, this separator drops right in between the antenna and your radios with no additional hardware needed.
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.