ARL0206 Log-periodic Logarithmic FM antenna 87.5 -108 MHz Protel

The ARL0206 is a broadband log-periodic FM antenna for the 87.5–108 MHz band, designed for professional broadcast applications. The all-stainless-steel construction ensures long-term mechanical stability, while the array geometry provides a very clean radiation pattern with high side-lobe suppression, ideal where strict protection of adjacent FM channels is required.

FM ANTENNA
MOD. ARL0206
Log Periodic FM Antenna – Band 87–108 MHz

ARL0206 Logarithmic periodic FM antenna 87.5 88 108 MHz Protel

ELECTRICAL DATA

Frequency range: 87.5–108 MHz
Bandwidth: 20.5 MHz
Gain max: 8 dBi
Number of elements: 6
Return loss: ≥ -14 dB
VSWR: ≤ 1.5:1
Nominal impedance: 50 Ω
Polarization: V/H
H beamwidth typ. -3 dB: 100°
E beamwidth typ. -3 dB: 55°
Max power: 700 W (N-f) / 2000 W (7/16-f)
Connector: N-f or 7/16-f
Lightning protection: all metal parts are D.C. grounded

MECHANICAL DATA
Dimensions (L × H × P): 1572 × 1890 × 70 mm
Weight without clamp: 8.8 kg (stainless steel version)
Wind surface: front 0.07 m², side 0.22 m²
Front wind load (160 km/h): 9 kg
Side wind load (160 km/h): 45 kg
Mounting: Ø 60–114 mm

MATERIALS
Stainless steel – Teflon – Brass

ACCESSORIES
ARL0206F: 1 clamp, stainless steel, weight 3 kg

ORDERING AND PACKAGING INFORMATIONS
ARL0206XZ: N-f connector version
ARL0206WZ: 7/16-f connector version

PACKAGING
1600 × 200 × 200 mm, weight 11.5 kg

This antenna is particularly suitable as a directional element in high-gain FM arrays, main and standby transmitters, gap-fillers and translators. The 50 Ω design, with options for N-f (700 W) or 7/16-f (2 kW) connectors and D.C. grounded metal parts, allows safe integration into demanding sites such as broadcast towers in harsh climatic environments.

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.

ARL0206 Log-periodic Logarithmic FM antenna 87.5 -108 MHz Protel - Protel Antennas - Professional Antennas for Telecomunications

ARL0206 Log-periodic Logarithmic FM antenna 87.5 -108 MHz Protel

Frequently asked questions about ARDCKM-B-13X

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