Shakespeare 5257-S VHF Antenna Splitter — SHA-5257-S
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Shakespeare 5257-S VHF Antenna Splitter
The Shakespeare 5257-S is a zero-loss VHF antenna splitter that allows a VHF radio and an AIS receiver or transponder to share a single antenna — eliminating the need to install a second antenna while maintaining full performance on both devices. A clean, practical solution for vessels where a second antenna mount isn’t practical or desirable.
Key Features
- Zero-loss splitter design — no signal degradation to either connected device
- Allows one VHF antenna to be shared between a VHF radio and an AIS receiver or transponder
- Eliminates the need for a second antenna installation
- Compatible with standard VHF marine antennas and SO-239/PL-259 coax connections
- Compact housing suitable for below-deck or helm area installation
- Part No. 5257-S
Parts Desk Insights
Best Use Case: Ideal for vessels adding AIS capability where running a second antenna cable or mounting a second antenna is not practical — such as sailboats with limited mast access, powerboats with crowded antenna arches, or any installation where a clean single-antenna setup is preferred. Works with both AIS receivers and Class B AIS transponders. Confirm connector types on your VHF radio, AIS device, and existing antenna cable before ordering to ensure compatibility.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.