Swivel (Rubber) Antenna, Ham Radio 410~512MHz, Omni Radiation, Unity Gain with SMA Male Connector
Compact Swivel "Rubber Duck" UHF Ham Radio Solution
Designed for rugged multi-elevation tactical networks, this 3-1/4 inch flexible rubber duck antenna provides unity gain (2.15 dBi) across the 410 to 512 MHz UHF spectrum (covering GMRS, LMR, and GMRS/FRS bands). Its broad spherical radiation pattern mitigates signal dropouts from polarization mismatch in dense urban layouts. Built with a shock-absorbing TPE radome and an articulating hinged swivel joint (90° tilt / 360° rotation), it terminates in a standard, direct-connect SMA Male (Plug) connector.
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Specification
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Value
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Antenna Type
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Flexible "Rubber Duck" Swivel Antenna
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Frequency Range
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UHF Ham / LMR / GMRS (410 - 512 MHz)
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Gain
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Unity Gain (0 dBd / 2.15 dBi)
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Connector Type
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SMA Male (Standard Threaded Plug with Male Center Pin)
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Impedance
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50 Ohm
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Radiation Pattern
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Omnidirectional (Broad Spherical Cover)
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Length / Height
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3-1/4 inches (approx. 8.3 cm)
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Base Type
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Hinged Swivel Joint (90° Tilt, 360° Rotation)
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Application
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Handheld Ham Radios, UHF Transceivers, RF Scanners
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Radome Material
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Ruggedized TPE / Flexible Rubber
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Mounting Style
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Direct Screw-On Terminal Mount
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VSWR
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≤ 2.0:1 (Typical at resonant center frequency)
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