Is ARL3A1011.Z optimized for the TETRA 380-470 MHz band?

Yes. The page targets TETRA/TETRAPOL deployments in the 380-470 MHz band, while the antenna provides extended coverage down to 350 MHz for additional UHF services.

Why is this antenna recommended for railway and highway tunnels?

It combines high gain with a clean directional pattern and a protective fiberglass radome suited to harsh environments, making it effective for engineered tunnel radio coverage.

How is equipment protected from electrostatic accumulation and lightning effects?

All metal parts are D.C. grounded, providing protection for connected radio equipment.

Which connectors and power levels are supported?

The antenna is available with N female or 7/16 female connector; max power is 300 W with N and 600 W with 7/16.

ARL3A1011.Z TETRA log-periodic antenna 380-470 MHz high gain for tunnels

300 - 870 MHz

UHF TETRA ANTENNA
MOD. ARL3A1011.Z - COD. ARLP3A1011.Z
Primary band: TETRA 380–470 MHz (extended coverage 350–470 MHz)

The ARL3A1011.Z is a professional high-gain directional log-periodic antenna developed to attract and support TETRA / TETRAPOL deployments in the 380–470 MHz UHF band, where controlled coverage and stable performance are required.

It delivers clean radiation patterns and consistent gain across the band to help improve link quality, manage interference and optimize engineered installations in public safety, transport and critical communications infrastructures.

ARL3A1011.Z Broadband Logarithmic antenna TETRA UHF 350-470 MHz Protel

The protective fiberglass radome enhances mechanical robustness in harsh environments. In tunnel projects this is a key benefit, because long-term reliability is required under vibration, dust, humidity and extreme operating conditions.

The antenna is recommended for railway and highway tunnels where TETRA coverage must be directional, repeatable and scalable. All metal parts are D.C. grounded to help protect connected radio equipment against electrostatic accumulation and lightning effects.

Antenna designed and manufactured in Italy.

ELECTRICAL DATA

Frequency range (MHz): 350 ÷ 470

Bandwidth (MHz): 120

Gain max. (dBi): 13

Return loss (dB): ≥ -14

VSWR: ≤ 1.5:1

Nominal impedance (Ω): 50

Polarization: V

H beamwidth typ. -3 dB: 60°

E beamwidth typ. -3 dB: 40°

Typ. pattern reference: H @ 380 MHz 56° / E @ 380 MHz 38°

Typ. pattern reference: H @ 440 MHz 62° / E @ 440 MHz 42°

Max Power (W): N => 300 / 7/16 => 600

Connector: N or 7/16 female

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

MECHANICAL DATA

Dimension length (mm): 520 x 380 x 1400

Weight without clamp (kg): 7.5

Wind surface (m²): Front 0.77 / side 0.20

Front wind load (Kg): 32 (160 Km/h)

Side wind load (Kg): 125 (160 Km/h)

Mounting (mm): Ø 50 ÷ 80

MATERIALS

Aluminium - Teflon - Brass

ACCESSORIES

ARL3A1011F: 1x CLAMP hot-dip galvanizing / weight 3 Kg

ARL3A1011FI: 1x CLAMP Stainless steels AISI316 / weight 3 Kg

ARL3A1011ZRI: flame retardant fiberglass radome

ORDERING AND PACKAGING INFORMATIONS

ARL3A1011XZ: N Female connector

ARL3A1011WZ: 7/16 Female connector

Frequently asked questions about ARL3A1011.Z

Quick answers about the ARL3A1011.Z high-gain TETRA 380-470 MHz log-periodic antenna (extended 350-470 MHz).

Is this antenna mainly intended for the TETRA 380-470 MHz band?

Yes. The page targets TETRA/TETRAPOL 380-470 MHz as the primary band, while the antenna provides extended operation down to 350 MHz.

Why is ARL3A1011.Z suitable for railway and highway tunnels?

It provides high gain with a clean directional pattern and a protective radome designed for harsh environments, supporting engineered tunnel coverage.

How does it protect radio equipment from electrostatic accumulation?

All metal parts are D.C. grounded, providing protection against electrostatic build-up and lightning effects.

Which connectors and maximum power are available?

Connector options: N female or 7/16 female. Max power: 300 W (N) or 600 W (7/16).

ARL3A1011.Z TETRA log-periodic antenna 380-470 MHz high gain for tunnels - Protel Antennas - Professional Antennas for Telecomunications

ARL3A1011.Z TETRA log-periodic antenna 380-470 MHz high gain for tunnels

Frequently asked questions about ARL3A1011.Z

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