What is the ARDCKM-D-13X used for?

ARDCKM-D-13X is a professional omnidirectional VHF dipole antenna for 150-300 MHz installations where uniform 360-degree coverage is required, including base stations, monitoring sites and demanding outdoor deployments. It is designed and manufactured in Italy.

What are the main electrical specifications of the ARDCKM-D-13X?

Frequency range is 150-300 MHz with 20 MHz bandwidth, 3.7 dBi max gain, VSWR = -14 dB, 50 ohm nominal impedance, V/H polarization, 700 W max power and N-f connector. All metal parts are D.C. grounded.

Is lightning protection included?

Yes. Lightning protection is improved because all metal parts are D.C. grounded (electrically grounded).

ARDCKM-D-13X NARROW-BAND VHF Omnidirectional Dipole Antenna 150-300 MHz Protel

Q: Which versions and accessories are available?

Ordering versions: ARDCKM-D-13XA with aluminium dipole, or ARDCKM-D-13XI with stainless steel dipole. Optional accessories include RAD150300 PVC radome and ZAFZ25/114C mast clamp for diameters 35-114 mm.

ARDCKM-D-13X NARROW-BAND VHF Omnidirectional Dipole Antenna 150-300 MHz Protel

108 - 300 MHz

VHF ANTENNA
MOD. ARDCKM-D-13X

Professional narrow-band VHF omnidirectional dipole antenna (150–300 MHz), engineered for continuous outdoor service and severe climatic conditions.
The ARDCKM-D-13X provides a true 360° omnidirectional radiation pattern, ideal where uniform coverage is required in the VHF band (typical uses include VHF land-mobile and base stations, radio monitoring / spectrum monitoring, telemetry / SCADA links, and applications operating within 150–300 MHz, including the DAB Band III portion (174–240 MHz) where relevant for monitoring and network activities).

Construction is optimized for long-term reliability: stainless-steel support with radiant dipole available in aluminium or stainless steel (depending on version). The antenna is electrically grounded (D.C. grounded) for improved lightning behaviour and professional site safety practices.
On request, the adapter area can be protected with an optional RAD150300 radome. The fixing system uses a hot-dip galvanised iron clamp with stainless-steel bolts, suitable for professional masts.
Antenna designed and manufactured in Italy.

ARDCKM-D-13X NARROW-BAND VHF Omnidirectional Dipole Antenna 150-300 MHz Protel

vertical diagram omnidirectional dipole antenna vhf 150-300MHz PROTEL

horizontal diagram omnidirectional dipole antenna vhf 150-300MHz PROTEL

Return loss curve omnidirectional dipole antenna vhf 150-300MHz PROTEL

ELECTRICAL DATA TYP.

Frequency range MHz 150 ÷ 300

Bandwidth MHz 20

Gain max. dBi 3.7

Return loss dB ≥ -14

VSWR ≤ 1.5:1

Nominal impedance Ω 50

Polarization Ω V/H

H beamwidth -3 dB 340°

E beamwidth -3 dB 90°

Max Power W 700w

Connector Nf

Lightning protection All metal parts are D.C. grounded

MECHANICAL DATA TYP.

Dimension length mm 750X1000x100

Weight without clamp kg 0.7

Wind surface m² Front 0.025 side 0.04

Front wind load Kg 3.6 ( 160 Km/h )

Side wind load Kg 6.9 ( 160 Km/h )

Mouting mm Ø 35 ÷ 114

MATERIALS

Stainless steel – Teflon – Brass – Aluminium 6060

ACCESSORIES

RAD150300 RADOME Polyvinyl chloride

ZAFZ25/114C CLAMP Polyvinyl chloride - hot-dip galvanizing Weight 1.9 Kg

ORDERING AND PACKAGING INFORMATIONS

ARDCKM-D-13XA ALLUMINIUM DIPOLE

ARDCKM-D-13XI STAINLESS STEEL DIPOLE

TYP. PACKAGING cm. 100x19x19 / Total weight with clamp 3 Kg

Also available for bands: 108-150MHz / 300-600MHz

Frequently asked questions about ARDCKM-D-13X

Common questions about the ARDCKM-D-13X narrow-band VHF omnidirectional dipole antenna (150-300 MHz), designed and manufactured in Italy:

What is the ARDCKM-D-13X typically used for?

It is used where a uniform 360-degree omnidirectional pattern is required in the 150-300 MHz range, such as VHF base stations, professional radio sites, and monitoring / radiomonitoring installations. The wide VHF span also covers services operating in this spectrum (depending on the specific network plan), including the DAB Band III portion (174-240 MHz) for monitoring activities.

What are the key electrical characteristics?

The antenna operates from 150-300 MHz with 20 MHz bandwidth, providing up to 3.7 dBi maximum gain, 50 ohm nominal impedance and V/H polarization. Typical beamwidths are 340° (H-plane) and 90° (E-plane). It is rated up to 700 W with N-f connector, with VSWR <= 1.5:1 and return loss >= -14 dB.

How does it behave regarding lightning protection?

The ARDCKM-D-13X is designed for professional outdoor sites: all metal parts are D.C. grounded, improving lightning behaviour and long-term reliability in harsh environments.

Which versions and accessories are available?

Ordering versions: ARDCKM-D-13XA (aluminium dipole) or ARDCKM-D-13XI (stainless-steel dipole). Optional accessories include the RAD150300 PVC radome and the ZAFZ25/114C mast clamp for Ø 35-114 mm installations.

ARDCKM-D-13X NARROW-BAND VHF Omnidirectional Dipole Antenna 150-300 MHz Protel - Protel Antennas - Professional Antennas for Telecomunications

ARDCKM-D-13X NARROW-BAND VHF Omnidirectional Dipole Antenna 150-300 MHz Protel

Frequently asked questions about ARDCKM-D-13X

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