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BSLL450U Series (Unity-Gain UHF)

Unity-Gain UHF Base Station Antenna


The BSLL450U Series is a configurable unity-gain UHF base station antenna covering 406–512 MHz through eight frequency-specific options for fixed radio sites.

Key Features

  • Maintains broad vertical coverage with a 75° elevation beam.
  • Matches UHF channel plans through eight frequency-specific options.
  • Handles up to 250 W for base-station or repeater equipment.
  • Offers two clamp-kit options for pole or mast installation.

Customization: Cable type, cable length, and connectors can be configured for specific installation requirements.

Product Description

BSLL450U Series provides tuned 406–512 MHz coverage for fixed UHF base station and repeater installations in the heavy-duty BSLL mechanical format.

Frequency-Specific Selection: Each available configuration is tuned to a defined portion of the series range, allowing selection around the site’s assigned UHF channels.

Coverage Pattern: Its unity-gain pattern and 75° vertical beam maintain broad elevation coverage around the site.

Outdoor Mechanical Package: A 2 in (5.08 cm) UV-inhibited fiberglass radome and 2.375 in (6.033 cm) epoxy-coated aluminum sleeve form the heavy-duty BSLL construction package. The assembly carries a 125 mph (201 km/h) wind rating.

Power and Connection: The antenna handles up to 250 W and uses an N female RF connection. Compatible clamp-style mounting hardware is available for pole and mast installations.

Ideal Applications

  • 450 MHz fixed radio networks
  • UHF base station and repeater sites
  • Pole- and mast-mounted communications infrastructure

Example Model Configurations: BSLL450U-A, BSLL450U-B, BSLL450U-BC, BSLL450U-C, BSLL450U-CD, BSLL450U-D, BSLL450U-DE, BSLL450U-E

Key Specifications

Feature Specification
Technology UHF LMR
Frequency

UHF LMR: 406-512 MHz by configuration

Gain

UHF LMR: Unity gain

Configuration 1 RF feed
Connector / Cable

UHF LMR connector: N female

Mounting Vertical pole or mast installation with a bracket kit
Dimensions 32 in long; 2.00 in radome diameter; 2.375 in sleeve diameter; 10 in sleeve length
Material

Housing: White UV-resistant fiberglass, 2.00 in diameter

Base: Epoxy-coated heavy-wall aluminum sleeve

VSWR

UHF LMR: <2:1 across more than 20 MHz

Maximum Input Power

UHF LMR: 250 W

Environmental Rating / Qualifications

Wind rating: 125 mph; 16.7 lb lateral load; 0.248 ft² flat-plate equivalent

Models & Configurations

Model / Configuration Configuration Details
BSLL450U-A 406-430 MHz; Unity gain
BSLL450U-B 430-450 MHz; Unity gain
BSLL450U-BC 445-465 MHz; Unity gain
BSLL450U-C 450-470 MHz; Unity gain
BSLL450U-CD 460-480 MHz; Unity gain
BSLL450U-D 470-490 MHz; Unity gain
BSLL450U-DE 480-500 MHz; Unity gain
BSLL450U-E 490-512 MHz; Unity gain

Tech Documents & Resources

BSLL450Umm

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