ARDCKM-B-13X Dipole FM Omnidirectional Antenna 87.5-108MHz

Q: For which applications is the ARDCKM-B-13X typically used?

The ARDCKM-B-13X is intended for professional FM broadcast sites where an omnidirectional radiation pattern is required in the 87.5–108 MHz band, including main/standby transmitter systems, gap-fillers and tower installations in harsh outdoor environments.

Q: What are the main electrical characteristics?

The antenna covers 87.5–108 MHz with a typical 10 MHz bandwidth, up to 3.7 dBi gain, 50 Ω nominal impedance and V/H polarization. Typical beamwidths are about 340° (H-plane) and 90° (E-plane). Maximum input power is 700 W with N-f connector or 1.2 kW with 7/16″f connector.

Q: Which mechanical and environmental features does it have?

The ARDCKM-B-13X is designed for severe climatic conditions with stainless-steel support and a compact structure (1500×1000×100 mm). All metal parts are D.C. grounded, improving lightning behaviour and long-term reliability on broadcast towers and masts.

Q: Which accessories and versions are available?

Accessories include the RAD87108 radome (PVC) and the ZAFZ25/114C clamp (hot-dip galvanizing). Versions: ARDCKM-B-13XA (aluminium dipole) or ARDCKM-B-13XI (stainless-steel dipole).

ARDCKM-B-13X Dipole FM Omnidirectional Antenna 87.5-108MHz

87.5 - 108 MHz

FM ANTENNA
MOD. ARDCKM-B-13X
Dipole Antenna FM - Band 87.5-108 MHz

Omni-directional antenna for FM band 87.5-108 MHz. This model has a 10 MHz bandwidth and is intended for broadcast transmitter sites where stable omni coverage is required.

Designed for severe climatic conditions, it comes with a stainless-steel support and radiant dipole in aluminum or stainless steel. The whole antenna is electrically grounded (DC grounded) for improved lightning behaviour and reliable outdoor operation. It comes with a standard N-f connector (700 W) or 7/16"f (1.2 kW).

ARDCKM-B-13X Dipole NARROW-BAND FM Omnidirectional Antenna 87 - 108 MHz

vertical diagram omnidirectional dipole antenna FM 87.5 88 108 MHz PROTEL

horizontal diagram omnidirectional dipole antenna FM 87.5 88 108 MHz PROTEL

curve return loss antenna dipole FM ARDCKM-B-13X PROTEL

ELECTRICAL DATA TYP.

Frequency range MHz 87.5 ÷ 108
Bandwidth MHz 10
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 (Nf) 1.2Kw (7/16”)
Connector Nf – 7/16”f
Lightning protection All metal parts are D.C. grounded

MECHANICAL DATA TYP.
Dimension length mm 1500X1000x100
Weight without clamp kg 1
Wind surface m² Front 0.04 side 0.07
Front wind load Kg 4.9 ( 160 Km/h )
Side wind load Kg 8.9 ( 160 Km/h )
Mounting mm Ø 35 ÷ 114

MATERIALS
Stainless steel – Teflon – Brass – Aluminium 6060

ACCESSORIES
RAD87108 RADOME Polyvinyl chloride
ZAFZ25/114C CLAMP hot-dip galvanizing Weight 1.9 Kg

ORDERING AND PACKAGING INFORMATIONS
ARDCKM-B-13XA ALLUMINIUM DIPOLE
ARDCKM-B–13XI STAINLESS STEEL DIPOLE
TYP.PACKAGING cm. 150x19x19 / Total weight with clamp 3.5 Kg typ.

Typical uses include FM broadcast networks, main/standby transmitter systems, gap-fillers/translators and tower/rooftop sites where a robust omni antenna is required. On request, the adapter can be protected with a radome cover. The fixing clamp is made of hot galvanized iron with stainless-steel bolts.

Frequently asked questions about ARDCKM-B-13X

Some common questions about the ARDCKM-B-13X omni-directional FM dipole antenna:

For which applications is the ARDCKM-B-13X typically used?

The ARDCKM-B-13X is intended for professional FM broadcast sites where an omnidirectional radiation pattern is required in the 87.5–108 MHz band, including main/standby transmitter systems, gap-fillers and tower installations in harsh outdoor environments.

What are the main electrical characteristics?

The antenna covers 87.5–108 MHz with a typical 10 MHz bandwidth, up to 3.7 dBi gain, 50 Ω nominal impedance and V/H polarization. Typical beamwidths are about 340° (H-plane) and 90° (E-plane). Maximum input power is 700 W with N-f connector or 1.2 kW with 7/16″f connector.

Which mechanical and environmental features does it have?

The ARDCKM-B-13X is designed for severe climatic conditions with a stainless-steel support and a compact structure (1500 × 1000 × 100 mm) and reduced wind surface. All metal parts are D.C. grounded, improving lightning behaviour and ensuring reliable operation on broadcast towers and masts.

Which accessories and versions are available?

Available accessories include the RAD87108 radome (PVC) and the ZAFZ25/114C clamp (hot-dip galvanizing). The antenna can be ordered as ARDCKM-B-13XA (aluminium dipole) or ARDCKM-B-13XI (stainless-steel dipole), depending on the installation and environmental requirements.

ARDCKM-B-13X Dipole FM Omnidirectional Antenna 87.5-108MHz - Protel Antennas - Professional Antennas for Telecomunications

ARDCKM-B-13X Dipole FM Omnidirectional Antenna 87.5-108MHz

Frequently asked questions about ARDCKM-B-13X

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