Model DPV-51M
UHF Rugged Vehicle Antenna Omni 225-400 Mhz

Frequency Range: 225-400 MHz
Gain: 4 dBi nominal
VSWR: 2.0:1
Polarization: Vertical
Pattern: Omnidirectional
Size: 80.75″ L

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The DPV-51M UHF antenna consists of two vertically polarized, omnidirectional dipoles fed in-phase, covering the frequency range of 225-400 Mhz. The dipole array is sealed in a fiberglass radome that provides both mechanical stability and environmental protection. The antenna is designed for ground-to-air communications in an extreme environment. It is provided with a coaxial mounting arrangement to enclose the electrical connections away from the environment.


The antenna is ruggedly built, yet lightweight, making it very mobile. The antenna is fabricated with a spring base that enables the antenna to survive impacts with brush or low power lines. It is completely preassembled for shipment and installation. The installation interface is a 4.50 inch diameter bolt circle.

Spec Sheet


Frequency Range 225-400 MHz
VSWR 2.0:1
Gain 4 dBi Nominal
Polarization Vertical
input Impedance 50 Ohms Unbalanced
Mounting Interface .375 Inch Bolts on 4.5 Inch Bolt Circle
Humidity 0-100%
Number of Inputs 1
Radome Diameter 2.35 inches
Minimum Elevation Beam Width 25 Degrees
Base Diameter 5.51 inches
Temperature -50 C to 70 C
RF Power 50 Watts Max
Length 80.75 inches
Wind Loading 85 knot wind with .5 inches of radial ice
Wind & Ice 85 Knots with .5 Inch Ice
Weight 9 lbs
Radome Material Filament Wound Fiberglass
Finish gray polyurethane paint
Grounding Ground Through Base
Elevation Pattern Peak Horizon +/- 10 Degrees
Elevation Beam Maximum Location Horizon, plus or minus 10 Degrees
Antenna Resistance Less That 1 Ohm to Ground
Azimuth Coverage Omni, plus or minus 1 dB
Input Connector Type N
Rain Up to 7 Inches Per Hour