ARL0208 Logarithmic periodic FM antenna 87.5 -108 MHz
Logarithmic log-periodic FM directional antenna for the 87.5–108 MHz broadcast band. The ARL0208 is designed for professional FM radio networks that need high gain, clean radiation pattern and precise coverage shaping on the VHF band. Thanks to its 9.5 dBi typical gain, 50 Ω impedance and VSWR ≤ 1.5, it is ideal as a main transmitting antenna or as a directional element in multi-antenna arrays.
FM ANTENNA
MOD. ARL0208 – COD. ARLP289KZ
Log-periodic directional FM antenna – Band 87.5–108 MHz
Log-periodic directional FM antenna – Band 87.5–108 MHz
ELECTRICAL DATA
Frequency range MHz: 87.5÷108
Bandwidth MHz: 20.5
Gain typ. dBi: 9.5
VSWR: ≤ 1.5
Nominal impedance Ω: 50
Polarization: V
E beamwidth typ. –3 dB: 50°
H beamwidth typ. –3 dB: 90°
Front-back ratio dB: ≥ 20
Max power W: 2500
Connector: 7/8
Lightning protection: All metal parts are D.C. grounded
Bandwidth MHz: 20.5
Gain typ. dBi: 9.5
VSWR: ≤ 1.5
Nominal impedance Ω: 50
Polarization: V
E beamwidth typ. –3 dB: 50°
H beamwidth typ. –3 dB: 90°
Front-back ratio dB: ≥ 20
Max power W: 2500
Connector: 7/8
Lightning protection: All metal parts are D.C. grounded
MECHANICAL DATA
Dimension length mm: 2800 × 1600 × 70
Weight kg: 6
Dimension length mm: 2800 × 1600 × 70
Weight kg: 6
MATERIALS
Aluminium – Teflon
Aluminium – Teflon
ACCESSORIES
Code: ARL0208F – Type: 1 clamp – Mounting ∅: 40–114 mm – Weight: 7 kg
Code: ARL0208F – Type: 1 clamp – Mounting ∅: 40–114 mm – Weight: 7 kg
The high side-lobe suppression of the ARL0208 reduces interference towards unwanted directions and helps to control forward-back and forward-side ratios in complex antenna systems. The robust aluminium and Teflon construction, together with D.C. grounded metal parts, makes this antenna suitable for harsh weather conditions on mountain sites, coastal transmitters and tall broadcast towers, for both public and private FM radio services.
Frequently asked questions about ARL0208
Some common questions about the ARL0208 log-periodic FM directional antenna for the 87.5–108 MHz broadcast band:
In which FM broadcast projects is the ARL0208 typically used?
The ARL0208 is mainly used in professional FM radio networks as a
directional transmitting antenna on the 87.5–108 MHz band.
It is suitable for main transmitters, gap-fillers and
rebroadcast sites where a controlled coverage pattern on the VHF band is required.
What are the advantages of the ARL0208 log-periodic design?
The log-periodic structure of the ARL0208 provides high side-lobe suppression
and a very clean radiation pattern across the whole FM band. This improves the
forward-back and forward-side ratios in antenna arrays,
reducing interference towards unwanted directions and optimising FM coverage in complex sites.
Can the ARL0208 be used in high-power FM systems?
Yes. The ARL0208 is rated for up to 2500 W input power with
50 ohm nominal impedance and VSWR ≤ 1.5. It is therefore
suitable for high-power FM transmitters and for large broadcast antenna
arrays installed on mountain or tower sites.
Which mechanical and environmental features does the ARL0208 have?
The ARL0208 is built with aluminium and Teflon, with a typical size of
2800 × 1600 × 70 mm and 6 kg
weight. All metal parts are D.C. grounded, improving behaviour against
lightning and ensuring reliable operation in harsh outdoor environments
on professional FM broadcast sites.
Related topics and searches
Typical queries and applications related to the ARL0208 and similar PROTEL FM broadcast antennas:
Log-periodic FM antenna 87.5–108 MHz
Directional FM broadcast antenna 9.5 dBi
VHF 50 Ω antenna for radio networks
FM transmitter antenna for mountain sites
High side-lobe suppression log-periodic
Professional FM radio coverage solutions
Antenna arrays for FM broadcast networks
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