Shakespeare 5912 Classic Flexible 7 Inch VHF Marine Antenna, Black

The Shakespeare 5912 Classic Flexible VHF Antenna is a compact, 7 inch black antenna built for boats where space is limited but reliable VHF communication still matters. Its one-section, space-saving design attaches and detaches quickly once the included flush mounting kit has been installed, making it a practical choice for small helms, tight consoles, or vessels needing a low-profile antenna. The antenna uses copper elements paired with a stainless steel ferrule cut to a standard 1 inch-14 thread, and its connectors are gold-plated to reduce connector-borne signal loss and deliver low-loss performance over time.

Electrically, the 5912 is rated for the VHF marine band with 50 ohms impedance, vertical polarization, and a maximum input power of 25 watts. It does not provide a DC ground and will read open on a continuity test, so installers should account for this when wiring. SWR is adequate across the marine band, though the precise reading depends on where the antenna is mounted on the boat. Shakespeare recommends the Style 4187 Ratchet Mount for this antenna. The unit ships complete with a gold-plated flush mounting kit for solder-free installation and is backed by a 2 year warranty.

Specifications

• Brand: Shakespeare
• Manufacturer Part Number: 5912
• Antenna Type: VHF Marine Antenna
• Length: 7 inches
• Color: Black
• Impedance: 50 Ohms
• Max Input Power: 25 Watts
• Polarity: Vertical
• DC Ground: No, reads open on a continuity test
• SWR: Adequate across the marine band; precise reading depends on antenna location on the boat
• Thread Size: Standard 1 inch-14 thread
• Material: Copper elements with stainless steel ferrule
• Connector Finish: Gold-plated for low-loss performance
• Sections: One section
• Suggested Mount: Style 4187 Ratchet Mount
• Mounting Kit: Gold-plated flush mounting kit included
• Weight: 0.39 pounds
• Box Dimensions: 2 inches H x 5 inches W x 10 inches L
• Warranty: 2 year warranty
• UPC: 719441100766

Fitment

This is a universal VHF marine antenna suited to any vessel with a compatible flush or ratchet-style mount; no specific make, engine, or model fitment is designated.

Replaces (OEM)

No OEM cross-reference numbers are listed for this part.

Frequently Asked Questions

What is the Shakespeare 5912 antenna designed for? The Shakespeare 5912 is a Classic Flexible 7 inch VHF marine antenna designed for boats where compact size and a low-profile installation matter, such as small helms or tight consoles.

How long is the Shakespeare 5912 antenna? The 5912 measures 7 inches in length, making it one of Shakespeare's more compact VHF antenna options.

Does the Shakespeare 5912 include a mounting kit? Yes, a gold-plated flush mounting kit is included with the 5912, allowing solder-free installation.

What mount does Shakespeare recommend for the 5912 antenna? Shakespeare recommends the Style 4187 Ratchet Mount for use with the 5912 Classic Flexible antenna.

What is the impedance and max power rating of the 5912? The Shakespeare 5912 has 50 ohms impedance and a maximum input power rating of 25 watts.

Is the Shakespeare 5912 antenna DC grounded? No, the 5912 does not provide a DC ground and will read open on a continuity test, which is normal for this antenna and should be accounted for during installation.

What material is the Shakespeare 5912 antenna made of? It uses copper elements with a stainless steel ferrule cut to a standard 1 inch-14 thread, and the connectors are gold-plated.

What color is the Shakespeare 5912 antenna? The 5912 Classic Flexible VHF antenna is black.

How much does the Shakespeare 5912 antenna weigh? The Shakespeare 5912 weighs 0.39 pounds.

Will SWR performance vary with where I mount the 5912? Yes, SWR is adequate across the VHF marine band on the 5912, but the precise reading depends on where the antenna is mounted on the boat.

Is the Shakespeare 5912 a multi-section antenna? No, the 5912 is built as one section, which keeps the flexible design compact and simple to install.

Does the Shakespeare 5912 come with a warranty? The Shakespeare 5912 Classic Flexible VHF antenna is backed by a 2 year warranty.