Shakespeare 5250-AIS Skinny Mini 3 ft AIS Antenna

The Shakespeare 5250-AIS Skinny Mini is a compact, dedicated AIS antenna engineered to meet the broader bandwidth requirements of AIS transceivers — requirements that standard VHF antennas are not optimised to handle. Its chrome-plated brass canister maintains consistent tuning across the AIS frequency range, avoiding the de-tuning that can occur with plastic-canister antennas. At 3 ft with a 36" stainless steel whip, it fits easily on vessels where a full-size 8 ft AIS antenna isn’t practical.

Key Features

• Dedicated AIS bandwidth — tuned specifically for AIS frequencies (161.975 MHz and 162.025 MHz), not a repurposed VHF antenna
• Chrome-plated brass canister — minimises de-tuning across the AIS band; more stable than plastic-canister alternatives
• Sealed, tin-plated copper wire coil — corrosion-resistant internal construction for long-term reliability in marine environments
• 36" stainless steel whip — durable, corrosion-resistant radiating element
• 3 dB gain — omnidirectional pattern with moderate gain suitable for coastal and offshore AIS reception
• Compact 3 ft profile — fits arches, hardtops, and mast locations where a full-size antenna won’t clear
• Includes: PL-259 connector and 16 ft RG-58 coax cable — ready to connect directly to most AIS transceivers

AIS Antenna vs. Standard VHF Antenna

AIS operates on two dedicated channels at the upper end of the marine VHF band and requires an antenna with sufficient bandwidth to cover both channels simultaneously. A standard VHF antenna tuned for the mid-band (Channel 16) may perform adequately, but a dedicated AIS antenna like the 5250-AIS is optimised for the AIS frequency range and will typically deliver better reception — particularly important for picking up weaker targets at distance. If sharing a single antenna between a VHF radio and an AIS transceiver, a splitter is required; see the Shakespeare 5257-S VHF Antenna Splitter.

Shakespeare AIS Antenna Lineup

• Shakespeare Galaxy 4 ft 3dB AIS Antenna — 4 ft version with ratchet-style base
• Shakespeare Phase III 4 ft AIS/VHF Antenna with Ratchet Mount — dual AIS/VHF use with ratchet mount
• Shakespeare 5225XT-AIS 8 ft Galaxy AIS Antenna — full-size 8 ft antenna for maximum AIS range
• Shakespeare 396-1AIS Dedicated AIS Receive Antenna — receive-only AIS antenna

Compatible AIS Transceivers

• Raymarine AIS700 Class B SO-TDMA AIS Transceiver
• em-trak X100 Fixed Mount VHF/DSC Radio with AIS Class B
• Garmin VHF 215 AIS Fixed-Mount Marine Radio

Related Accessories

• Shakespeare 5257-S VHF Antenna Splitter — share one antenna between a VHF radio and AIS transceiver

Parts Desk Insights

Best use case: The 5250-AIS Skinny Mini is the right choice when you need a dedicated AIS antenna but have limited mounting space — particularly on center consoles, smaller cruisers, and sailboats where a full 8 ft antenna isn’t practical. The compact 3 ft profile fits most arch and hardtop locations without clearance issues. For vessels where maximum AIS reception range is the priority and space allows, the 5225XT-AIS 8 ft Galaxy will outperform the Skinny Mini at distance. If you’re planning to share your existing VHF antenna with an AIS transceiver rather than running a dedicated antenna, the Shakespeare 5257-S splitter is the cleaner solution — though a dedicated antenna will always deliver better AIS performance than a shared one. The included 16 ft RG-58 cable and PL-259 connector are sufficient for most arch-to-transceiver runs without an extension.