For more than 23 years, Bethlehem’s Hy Power Antenna Company has built fully assembled, resonant HF antennas and matching baluns for ham radio operators around the world. Its wire antennas are designed for practical installations—from small city lots to portable and QRP setups—and use insulated wire, stainless-steel hardware, and ceramic insulators. The company is especially known for true off-center-fed antennas that cover multiple bands through a single coax connection.
SWR, LPSince 1963, Ebensburg-based SWR, LP has designed and manufactured FM and TV broadcast antennas, transmission-line equipment, and related parts. The company grew from supervising RF installations and field warranty work into an international broadcast specialist, developing its patented Thermocoupled rigid coaxial line in 1972 and later adding high-power antenna systems for UHF, DTV, and FM applications. SWR also maintains field-service capabilities, drawing on an in-house manufacturing facility and projects in more than 35 countries.334220EBENSBURG, PA
Octane WirelessOctane Wireless designs and manufactures high-performance antennas and RF over Fiber products, including wearable, gooseneck, panel, vehicle, UAV, stub, omni-directional, peel-and-stick, and other antenna families. The company also develops custom antennas and fiber-optic antenna-remoting solutions for military, law enforcement, commercial wireless, cellular/LTE, 5G, WiFi, UAV, vehicle, and other communications applications.HANOVER, MD
EM AntennasFounded in 1963, EM Antennas designs and manufactures custom, high-performance RF antennas for military and commercial communication systems, with particular depth in rugged ultrawideband technology for electronic warfare and signal intelligence. The Johnstown company supplies mission-critical systems to defense contractors, government integrators and commercial users, and guarantees every antenna to its stated performance specifications. EM Antennas is ISO 9001:2015 certified and HUBZone certified; its rugged products include MIL-STD-810H-tested designs, and its EM-6841 antenna received a Platinum honor in the 2025 Military + Aerospace Electronics Innovators Awards.JOHNSTOWN, NY
Maxtena IncFounded in 2007, Maxtena designs and manufactures advanced RF antennas and wireless systems, including beamforming solutions for terrestrial and satellite communications. The company’s patented Dynamic Aperture Technology (DAT™) and Helicore™ antenna technology underpin products used on land, in the air and at sea, while its engineering team supports both off-the-shelf orders and customized integrations. Maxtena is headquartered in the Washington, D.C., metropolitan area and operates additional offices in North America and Europe.GERMANTOWN, MD