What is the operating frequency range of ARDU.04?

ARDU.04 operates in the 380-470 MHz UHF band and is designed as a broadband omnidirectional collinear antenna system for TETRA/TETRAPOL networks.

Is ARDU.04 suitable for true omnidirectional coverage?

Yes. The antenna provides a circular horizontal radiation pattern with 360 deg H-plane beamwidth.

Which polarization options are specified?

ARDU.04 supports linear polarization V/H and +/-45 degrees, enabling flexible integration in professional UHF radio sites.

Does ARDU.04 allow vertical pattern adjustment and outdoor installation?

Yes. It features easy mechanical +/- adjustment of the vertical radiation pattern, is IP65 waterproof and all metal parts are D.C. grounded for lightning protection.

ARDU.04 Protel Omnidirectional Collinear BroadBand TETRA UHF Antenna 380-470 MHz

300 - 870 MHz

OMNIDIRECTIONAL COLLINEAR BROADBAND UHF TETRA ANTENNA
MOD. ARDU.04
4 DIPOLES ANTENNA SYSTEM

The ARDU.04 is a professional omnidirectional collinear wideband antenna system developed for UHF TETRA / TETRAPOL networks in the 380-470 MHz range, providing a perfectly circular horizontal plane for stable 360-degree coverage around the site.

With 9.2 dBi gain and adjustable vertical tilt, ARDU.04 is ideal for engineered infrastructures where coverage must be optimized without changing antenna type, supporting professional radio sites, base stations and fixed installations requiring repeatable results across the full band.

Constructed in stainless steel with no plastic parts, the antenna is designed for demanding outdoor environments with high electrical and mechanical performance.

Protel collinear 4 dipoles antenna tetra ARDU.04 380-470MHz Stainless Steel

The antenna is completely waterproof IP65 and the whole structure is D.C. grounded, improving robustness and helping protect connected radio equipment. It is supplied as standard with N female connector and a fiberglass mast.

Typical deployments include public safety and utility UHF networks, transport and infrastructure corridors, and professional radio sites where an omnidirectional pattern and the ability to mechanically adjust the vertical radiation pattern are key advantages.

Antenna designed and manufactured in Italy.

ELECTRICAL DATA

Frequency range (MHz): 380 ÷ 470

Bandwidth (MHz): 90

Gain max. (dBi): 9.2

Return loss (dB): ≥ -14

VSWR: ≤ 1.5:1

Nominal impedance (Ω): 50

Polarization: V/H/ +/-45°

H beamwidth typ. -3 dB: 360°

E beamwidth typ. -3 dB: 18°

Max Power (W): 500

Connector: N female

Lightning protection: All metal parts are D.C. grounded

MECHANICAL DATA

Dimension length (mm): 3000X300x40

Weight without clamp (kg): 7

Wind surface (m²): Front 0.20 side 0.24

Front wind load (Kg): 24 (160 Km/h)

Side wind load (Kg): 28 (160 Km/h)

Mounting* (mm): Ø 60 ÷ 114

MATERIALS

Stainless steel – Teflon – Brass –

ACCESSORIES

* ARDU-04F: 1xCLAMP hot-dip galvanizing / weight 2 Kg

ORDERING AND PACKAGING INFORMATIONS

PACKAGING (mm): 3000x300x60 / weight 8.5 Kg without clamp

Frequently asked questions about ARDU.04

Quick answers about the ARDU.04 omnidirectional collinear broadband antenna system for 380-470 MHz UHF TETRA / TETRAPOL networks.

What is the frequency range and bandwidth of ARDU.04?

ARDU.04 operates in 380-470 MHz with 90 MHz bandwidth.

Is the antenna omnidirectional on the horizontal plane?

Yes. The H-plane beamwidth is 360°, providing circular coverage around the site.

Which polarizations are available?

The specified polarization is V/H with +/-45° option.

Is it suitable for outdoor sites and how is equipment protected?

ARDU.04 is IP65 and all metal parts are D.C. grounded for lightning protection.

ARDU.04 Protel Omnidirectional Collinear BroadBand TETRA UHF Antenna 380-470 MHz - Protel Antennas - Professional Antennas for Telecomunications

ARDU.04 Protel Omnidirectional Collinear BroadBand TETRA UHF Antenna 380-470 MHz

Frequently asked questions about ARDU.04

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