Promotional Bundle of Bury Flex 7ft, 10ft, 15ft patch cables

We guarantee you'll love this cable, or return it for your money back within 30-days!

Our favorite cable! Bury-Flex is a high-performance, flexible 50-ohm low-loss 400-series coaxial cable designed for demanding RF applications where flexibility, durability, and direct burial capability are essential. This 3-pack of patch cables is a steal of a deal, with many of our competitors charging $60 for just one cable!  This cable features a 9.5 AWG stranded bare copper center conductor and a rugged UV-resistant polyethylene (PE) jacket, making it significantly more flexible than standard rigid 400-series coax while delivering excellent low-loss performance comparable to other premium brands of 400-series cables.

By combining a gas-injected foamed polyethylene dielectric with dual shielding—100% bonded aluminum foil plus 97% tinned copper braid—Bury-Flex provides superior RF shielding and the electrical characteristics of more expensive alternatives, along with the robustness of air-dielectric-style cables. With a nominal outer diameter of 0.405", a tight minimum bend radius of 2", and a cable weight of approximately 0.1 lbs/ft, it offers outstanding flexibility for rotator loops and tight routing without sacrificing strength. The heavy-duty PE jacket ensures long-term UV, abrasion, and moisture resistance, making it fully rated for indoor, outdoor, and direct burial installations—even in harsh environments.

Compared to traditional RG-8U and RG-213, Davis RF Bury-Flex delivers substantially lower signal attenuation (roughly half the loss at VHF/UHF frequencies in many cases), resulting in more power delivered to the antenna and improved overall system efficiency. It provides a much tighter bend radius, lighter weight where needed, enhanced flexibility for dynamic setups, and better shielding, all while maintaining full compatibility with standard PL-259, N-type, and other connectors. Attenuation is competitive with LMR-400 equivalents (e.g., ~2.8–2.9 dB/100 ft at 400 MHz), with a velocity factor of 82% and capacitance of 24.6 pF/ft.

Typical applications include ham radio antenna feeders, rotator loops, mobile and base station installations, crank-up towers, direct-burial runs, wireless links, SCADA systems, and any RF interconnect requiring low loss, high reliability, and the ability to withstand repeated flexing or burial without conduit.

Bury-Flex is a cost-effective, American-made upgrade that combines the best traits of flexible low-loss coax with the toughness needed for real-world amateur radio, commercial, and outdoor use—without the premium price of some name-brand alternatives.