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VHF/UHF sectional vehicle whip, monopole/dipole, GPS, 2.35 m, 30-88 MHz, 225-512 MHz


The DB30512-M is a tactical dual band whip antenna, designed to be installed on armed forces vehicles, for connection to a VHF radio 30-88 MHz and a UHF radio 225-512 MHz.

The antenna is designed as a monopole in the VHF band, with performance similar to an end-fed VHF only antenna.  The UHF part is an elevated high gain dipole which reduces distortion of the radiation patterns that could be caused by the environment of a vehicle.

The antenna is available with single or dual feed in the VHF/UHF bands. Optional L1 or L1/L2 GPS is also available.

VHF UHF L1 GPS (option) L1/L2 GPS (option)
Frequency 30-88 MHz 225-512 MHz 1575.42 ± 1.023 MHz L1 – 1575.42 ± 10 MHz
L2 – 1227.60 ± 10 MHz
VSWR ≤3.5:1 (see plot) ≤3.5:1 (see plot) Supply voltage: 3 V ± 0.5 V
Pre-amplifier: 27 dB
Noise Figure: 2 dB
Supply Current: < 35 mA
Supply voltage: 2.7-5.5 V
Pre-amplifier: 26.5 dB @ 5 V
Noise Figure: 2.5 dB
Supply Current: < 60 mA
Gain From – 3 to + 3 dBi compared to
l/4 whips on a 3×3 m ground plane.
(see typical plot)
From – 1 to + 3 dBi.
0.5 dBi in average.
(see typical plot)
Impedance 50 Ω 50 Ω
Power 100 W CW 50 W CW
Connector (Default) BNC female (see option table) TNC female (see option table) SMA female SMA female
EMP Integrated
Polarisation Vertical Vertical RHCP RHCP
Directivity Omnidirectional Omnidirectional
Isolation See Charts Tab See Charts Tab
Dimensions Height:   2.35 m
Top Diameter:   8 mm
Weight Total:   3.4 kg
Base:   2.1 kg
Lower Whip:   1.1 kg
Upper Whip:   0.2 kg
Colour Base:   Black
Whips:   Green or Sand
Temperature Range Operation – 40°C to + 70°C
Temperature Shock – 40°C to + 55°C and + 55°C to – 40°C
Heat and Humidity 30°C @ 88% HR
Salt Fog 96 hours
Immersion 1 m for 2 hours
Rain 100 mm/h
Oak Beam Test 25 impacts at 40 km/h
Drop Test 26 drops, 1.2 m height
Wind Rating 160 km/h
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