EhubAmerica EPC-450RV2 UHF Stubby Helical Antenna 450-470 MHz Motorola

The eHubAmerica EPC-450RV2 is a compact UHF stubby helical replacement antenna engineered for Motorola portable radios operating in the 450–470 MHz band. Its low-profile helical design reduces the physical footprint compared to a standard whip while maintaining an omnidirectional radiation pattern with vertical polarization, making it well suited for professional and commercial two-way radio deployments where a smaller antenna profile is preferred. The urethano sleeve and ABS protective cap provide a durable outer structure capable of withstanding routine field handling, and the 50-ohm impedance with a VSWR of less than 2.0 ensures efficient power transfer between the radio and the antenna across the rated frequency range.

Key features & benefits

• UHF 450–470 MHz Coverage — Rated across the full 450–470 MHz UHF band with a center frequency of 450 MHz, covering the most common licensed UHF channelization used in commercial and professional portable radio systems.
• Stubby Helical Low-Profile Design — The compact helical form factor keeps the antenna close to the radio body, reducing snag risk and improving portability in tight environments without sacrificing omnidirectional coverage.
• Omnidirectional Vertical Polarization — Radiates uniformly in all horizontal directions with vertical polarization, consistent with standard portable radio antenna conventions and optimized for reliable point-to-point and repeater-based communications.
• 50-Ohm Impedance with VSWR < 2.0 — Matched to the 50-ohm RF output standard of portable two-way radios, with a VSWR below 2.0 across the rated band to minimize reflected power and protect the radio's transmitter stage.
• Unity Gain — Provides unity gain performance appropriate for a stubby helical form factor, balancing compact size against radiating efficiency for typical short-range and repeater-assisted communication scenarios.
• Stud Monopole Connector Interface — Uses a stud monopole connector interface designed to mate directly with compatible Motorola portable radio antenna ports, enabling a straightforward drop-in replacement without adapters.
• Durable Urethano Sleeve and ABS Cap — The urethano sleeve resists everyday abrasion and flex stress, while the ABS cap protects the antenna tip, contributing to a longer service life in active field use.
• Compact Form Factor — At 74 ± 3.5 mm total length, the EPC-450RV2 is sized for portable radios where a reduced-length antenna is required by operational or ergonomic requirements.