ARL100R/F500XZ log-periodic Measurements antennas 100-500 MHz

Q: What is the ARL100R/F500XZ used for?

ARL100R/F500XZ is a directional broadband log-periodic measurement antenna covering 100-500 MHz for VHF/UHF radiomonitoring, direction finding, RF surveys and interference hunting.

Q: Which services can be monitored within 100-500 MHz?

Depending on regional allocations, the 100-500 MHz span includes parts of VHF and UHF used for aeronautical services near 108-137 MHz, VHF land-mobile users, public safety/professional radio, and broadcast services such as Band III DAB/VHF TV and UHF TV within range.

Q: Which element configurations are available?

Ordering options include ARL100R500XZ with folding elements and ARL100F500XZ with unscrewed elements, depending on transport and deployment requirements.

ARL100R/F500XZ log-periodic Measurements antennas 100-500 MHz

Measurements Antennas

MONITORING ANTENNAS FOR MOBILE AND STATIONARY USE, PROVIDING COMPLETE COVERAGE RANGE 100 MHz TO 500 MHz

MOD. ARL100R/F500XZ – COD. ARL100R/F500XZ
Measurement - Monitoring Antenna

Complete manual including:

• Internal calibration with typical gain factor
• Datasheet with general product characteristics
• Certificate of Conformity including the product serial number
• H/V radiation patterns
• Return loss test report
• K-factor calculation
• Assembly instructions

ELECTRICAL DATA
Frequency range A MHz 100÷500
Bandwidth MHz 400
Gain max . dBi 7
Return loss max dB ≥ -10
VSWR max ≤ 1.9:1
Nominal impedance Ω 50
Polarization Ω V/H
H beamwidth 400 Mhz -3 dB 100°
H beamwidth 250 Mhz -3 dB 110°
H beamwidth 150 Mhz -3 dB 110°
E beamwidth 400 Mhz -3 dB 70°
E beamwidth 250 Mhz -3 dB 60°
E beamwidth 150 Mhz -3 dB 80°
Max Power (peak power) W 100 W ( 500 )
Connector Nf
Lightning protection All metal parts are D.C. grounded
MECHANICAL DATA
Dimension length mm 1700Xh1600x130
Elements numbers 18
Weight kg 6.2
Wind surface m² Front 0.02 side 0.12
Front wind load Kg 0.8 ( 25 m/s )
Side wind load Kg 4.1 ( 25 m/s )
Mounting +/- 90° mm mechanical polarizer Ø 30
MATERIALS
Anticorodal alluminium - Brass - Teflon - Polyvinyl chloride - RoHS compliance-
ACCESSORIES
BAG100F500 Transport bag
ORDERING AND PACKAGING INFORMATIONS
ARL100F500XZ With unscrewed elements
ARL100R500XZ With folding elements
PACKAGING mm. 1800x400x400 / weight 9 Kg

Broadband VHF/UHF directional logarithmic (log-periodic) antenna for measurements and radiomonitoring across 100–500 MHz. This span covers multiple VHF/UHF services (depending on regional allocations), typically including parts of aeronautical services near 108–137 MHz, professional/land-mobile users, DAB/VHF broadcast services and UHF broadcast segments within range. It is used for RF surveys, field-strength checks, coverage verification, direction indication and interference hunting, where a directional pattern helps improve selectivity in dense RF environments.

For transport and deployment, two supply configurations are available: ARL100R500XZ with folding elements and ARL100F500XZ with unscrewed elements. In the folding version, elements can be bent along the support body using the Protel bending system, reducing bulk during mobile missions and frequent transport. V/H polarization supports measurement sessions where you must match or compare polarizations.

Radiomonitoring
Direction Finding Antennas
RF Signal Search and Survey
Monitoring and measurement of RF signals

Antenna designed and manufactured in Italy.

Frequently asked questions about ARL100R/F500XZ

Quick answers for 100–500 MHz VHF/UHF radiomonitoring teams, mobile survey units and fixed monitoring stations.

What is the ARL100R/F500XZ used for?

Directional broadband measurements across 100–500 MHz for radiomonitoring, RF surveys, direction indication and interference hunting.

Which services can be monitored within 100–500 MHz?

Depending on local allocations, targets can include aeronautical services near 108–137 MHz, land-mobile/professional radio users, and broadcast services such as DAB/VHF TV and UHF TV segments within range.

Why choose a directional log-periodic antenna for surveys?

Directionality improves selectivity and reduces off-axis pickup, supporting more reliable surveys and helping interference localization and direction indication.

Folding elements or unscrewed elements: which one should I choose?

Choose ARL100R500XZ when you need folding elements for reduced bulk during transport and faster field logistics. Choose ARL100F500XZ when you prefer unscrewed elements for packing and logistics.

What does V/H polarization mean in practice?

V/H polarization indicates the antenna can be used in vertical or horizontal polarization, useful when matching the service polarization or comparing both during measurement sessions.

What documentation is included for professional reporting?

A complete manual can include internal calibration with typical gain factor, datasheet, certificate of conformity (with serial number), H/V radiation patterns, return loss test report, K-factor calculation and assembly instructions.

ARL100R/F500XZ log-periodic Measurements antennas 100-500 MHz - Protel Antennas - Professional Antennas for Telecomunications

ARL100R/F500XZ log-periodic Measurements antennas 100-500 MHz

Frequently asked questions about ARL100R/F500XZ

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