Made in USA Antennas: Marine, Cellular & Broadcast

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This page lists American companies that make antennas, from the VHF, AIS, cellular and Wi-Fi antennas on boats, trucks and remote equipment to the phasors, tuning units and combiners that drive AM radio broadcast towers.

An antenna looks simple, but its performance depends on the parts inside it and how carefully it is tuned. US makers on this page assemble, tune and test their antennas by hand, and some also machine, weld and paint their own cabinets and brackets. Parts such as coaxial cable, connectors and vacuum capacitors may come from other suppliers, and each listing says what the company or another source states about where its parts come from.

For two-way and amateur radios see Radios.

Digital Antenna

Digital Antenna is a family-owned company that designs and builds marine and commercial wireless antennas: VHF, AIS and AIS/VHF combo, SSB, AM/FM stereo, Wi-Fi and multi-band antennas for boats, plus omni-directional and directional cellular (4G/5G/LTE) antennas such as Yagis, log-periodics and panels, indoor antennas and complete cellular antenna kits for IoT, M2M and alarm systems. It also makes coaxial cable assemblies and sells cable, connectors, mounts and extenders. Customers include boat builders and marine dealers, security and fire protection companies, public safety and government agencies, and oil, gas and utility companies.

Its marine antennas use a fiberglass radome with a UV-stable polyurethane coating, 316 marine-grade stainless steel bases and ferrules, soldered connections and RG-8X coax with foil shielding and 98% tinned braid. Antennas carry a five-year limited warranty, and accessories one year.

Made in: Sunrise, FL (every antenna hand-assembled, tuned and tested there).

Source: Digital Antenna, About Us · FAQs, 2026, checked 10/2026

Sunrise, FL

Digital Antenna Products on Amazon

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Kintronic Labs

Kintronic Labs is a third-generation, family-owned company, founded in 1949, that designs, builds, installs and commissions AM and medium wave radio broadcast antenna systems for stations around the world. Its products include directional antenna phasing systems, antenna tuning units, diplexers and multiplexers that put several AM stations on one tower, RF contactors that switch up to 200 amps of RF, low-inductance wire-wound dummy loads, inductors, capacitor mounts, chokes and insulators, plus FM, STL, TV and telecom gear such as isocouplers, FM filters and combiners, coaxial switches and equipment racks. It also makes shortwave, eLoran, LF and VLF antenna products and aluminum prefab transmitter buildings. Its dummy loads were installed at the U.S. government's HAARP research site in Alaska in 2007.

Made in: Bluff City, TN (a 54,000 sq ft plant with a manual and CNC machine shop, waterjet cutting, sheet metal fabrication, welding and a paint booth, where cabinets are drilled, painted and wired by hand; about 30 employees; ISO 9001 certified). The site also has a medium wave and short wave antenna test range and a shielded anechoic chamber for EMC testing.

Bought in: parts such as vacuum variable capacitors are bought from other makers and mounted in Kintronic's own brackets, and it resells some items, including transmission line, towers and Siglent network analyzers.

Source: Radio World, 2025 · Kintronic facilities, checked 10/2026

Bluff City, TN

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Antenna makers by state

Florida: Digital Antenna (Sunrise), marine VHF, AIS, cellular, Wi-Fi and commercial wireless antennas
Tennessee: Kintronic Labs (Bluff City), AM and medium wave broadcast antenna systems

Choosing a marine antenna

Gain: a 3 dB antenna has a wide signal pattern that suits sailboats and boats that roll in waves. A 6 dB antenna is a common choice for powerboats, and a 9 dB antenna reaches farther but has a flatter pattern that works best on large, steady vessels.
Height: VHF works by line of sight, so mounting height adds more range than extra gain. Longer antennas usually have higher gain.
Materials: look for a UV-protected fiberglass radome and 316 stainless steel fittings, which resist saltwater corrosion better than 304 stainless.
Cable: long cable runs lose signal. Low-loss coax, such as LMR-400 instead of RG-8X, keeps more of the signal on big boats and tall masts.
Connections: soldered connections and sealed connectors last longer in salt air than crimped ones left open to moisture.

Reading "Made in USA" on antennas

Under Federal Trade Commission rules, a plain "Made in USA" claim means all or virtually all of the product is made here. Many antenna makers build and test the antenna in the US but buy cable, connectors or electronic parts from other suppliers. The listings on this page say which work happens in the US and name bought-in parts when a source states them.

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Disclosures

Company names, logos and website previews belong to their owners and appear here only to identify the companies listed. If you own a listing and want an image changed or the listing removed, please contact us.

This site takes part in the Amazon Associates program and other affiliate programs, so some links earn us a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases.

* This site does not have any relationship, business or personal, with any of the manufacturers listed. Our only affiliations are with the affiliate programs described above.

A company may be based in the USA while making some products elsewhere. Check the manufacturer's own site for where a specific product is made.