ATU-21AS Antenna UHF 400-420 MHz Super Stubby

The Motorola AAM28X501 ATU-21AS Super Stubby UHF Antenna is an ultra-compact antenna designed for the Motorola EVX-S24 portable two-way radio operating within the 400–420 MHz UHF frequency range.

Measuring only 2 inches (5.08 cm) in length, the ATU-21AS features a super stubby, low-profile design that keeps the radio compact and comfortable to carry. Its short profile helps reduce snagging on clothing, equipment, and other objects, making it a convenient antenna option for professionals who wear or carry their radio throughout the workday.

The AAM28X501 is ideal for commercial, hospitality, retail, security, education, maintenance, property management, and other professional two-way radio applications where a compact portable radio configuration is preferred.

Key Features

• Super stubby UHF portable radio antenna

• 400–420 MHz frequency range

• Ultra-compact 2-inch (5.08 cm) design

• Low-profile design for comfortable everyday use

• Helps reduce snagging on clothing and equipment

• Designed for the Motorola EVX-S24 portable radio

• Easy screw-on installation

• Black finish

• Motorola part number: AAM28X501

• Antenna model: ATU-21AS

Compatible Radios

The Motorola AAM28X501 ATU-21AS is designed for:

• Motorola EVX-S24

Always verify your radio model and operating frequency before ordering to ensure proper antenna compatibility.

Specifications

Manufacturer: Motorola Solutions
Part Number: AAM28X501
Model: ATU-21AS
Accessory Type: Portable Radio Antenna
Antenna Type: Super Stubby
Frequency Band: UHF
Frequency Range: 400–420 MHz
Length: 2 in. (5.08 cm)
Color: Black
Compatible Radio: Motorola EVX-S24