8-Foot Mini-UHF to UHF Antenna Adapter Cable

The Motorola HKN9557A is a genuine 8-foot antenna adapter cable designed to connect a compatible Motorola mobile radio’s Mini-UHF antenna port to standard UHF antenna-system cabling.

Its flexible coaxial cable helps reduce strain on the radio’s antenna connector and makes it easier to route rigid or low-loss transmission line in base-station, control-station and custom mobile installations.

Equipped with Mini-UHF and UHF-style connectors, the HKN9557A provides a dependable interface between compatible Motorola radio equipment and an external antenna system.

Key Features

• Adapts a Mini-UHF radio connection to a standard UHF antenna connection

• Approximately 8 feet of flexible coaxial cable

• Simplifies connection to rigid or low-loss transmission line

• Helps reduce strain on the radio’s antenna connector

• Suitable for base-station and control-station installations

• Supports select mobile-radio installations

• Genuine Motorola accessory

Product Specifications

• Manufacturer: Motorola

• Model Number: HKN9557A

• Accessory Type: Antenna adapter cable

• Cable Length: Approximately 8 feet

• Radio-Side Connector: Mini-UHF male

• Antenna-System Connector: UHF female, SO-239-style

• Application: Mobile, base-station and control-station antenna connection

• Color: Black

Connector Function

The Mini-UHF connector attaches to the compatible radio’s antenna port. The UHF female connector accepts a standard PL-259 male plug commonly used with coaxial antenna-system cables.

Verify the connector type on both the radio and antenna feed line before ordering.

Installation Benefits

The HKN9557A can make antenna installation easier when the main transmission line is too large, stiff or inflexible to connect directly to the back of the radio.

The flexible adapter cable can provide:

• Easier cable routing

• Reduced connector strain

• More flexible equipment placement

• A convenient transition to standard UHF coaxial connectors

• Improved access behind a radio or control-station enclosure

Radio Compatibility

This adapter is intended for compatible Motorola mobile radios equipped with a Mini-UHF antenna connection.

Compatibility depends on the radio model, frequency range, antenna system and connector configuration. Confirm all equipment specifications before ordering.

Important Product-Name Clarification

This product is commonly described as an 8-foot cable with connector, not an “80V cable.” A more accurate customer-facing name is 8-Foot Mini-UHF to UHF Antenna Adapter Cable.

Package Contents

• One Motorola HKN9557A 8-foot antenna adapter cable

Radio, antenna, coaxial feed line, mounting hardware and test equipment are not included.

Ideal Applications

• Radio control stations

• Base-station installations

• Mobile-radio installations

• External antenna connections

• Low-loss coaxial cable installations

• Communications equipment cabinets

• Professional radio-service environments

The connected antenna system must match the radio’s operating frequency, impedance and power requirements. Professional installation and antenna-system testing are recommended.

Why Buy from Delmarva Communications?

Delmarva Communications provides genuine communications equipment backed by more than 20 years of industry experience. Our team can help verify connector compatibility and identify the correct antenna accessories for your Motorola radio installation.