VHF/GPS Stubby Antenna (160–174 MHz) – FM/UL Approved

The Motorola PMAD4121B is a genuine combination VHF/GPS stubby antenna designed for compatible MOTOTRBO portable radios operating between 160 and 174 MHz. Its compact profile provides dependable VHF communication while maintaining GPS signal access on properly equipped radios.

At approximately 3.5 inches long, the PMAD4121B is ideal for professionals who carry their radios on a belt, vest or uniform. Its low-profile design is shorter and less obtrusive than a full-length whip antenna, helping reduce interference with clothing and protective equipment.

The PMAD4121B is approved for use with select FM and UL-certified Motorola radio configurations. Intrinsic-safety approval applies only when the antenna is installed as part of a complete, properly certified radio system.

Compatible Motorola Radios

Compatible models may include:

• MOTOTRBO XPR3300 and XPR3300e

• MOTOTRBO XPR3500 and XPR3500e

• MOTOTRBO XPR7350 and XPR7350e

• MOTOTRBO XPR7550 and XPR7550e

• MOTOTRBO R2

• MOTOTRBO R5

• MOTOTRBO R7

• Select UL-approved XPR3000 and XPR7000 Series VHF radios

Compatibility and intrinsic-safety approval depend on the radio model, frequency configuration and complete certified accessory combination.

Key Features

• Genuine Motorola Solutions antenna

• Combination VHF and GPS design

• VHF frequency range: 160–174 MHz

• Compact stubby antenna construction

• Approximately 3.5 inches or 9 cm long

• Supports GPS-equipped portable radios

• Brown frequency-identification band

• Durable construction for professional use

• Shorter and less obtrusive than a whip antenna

• Ideal for belt-, vest- or uniform-worn radios

• Direct-mount installation

• Approved for select FM and UL radio configurations

Product Specifications

• Manufacturer: Motorola Solutions

• Part Number: PMAD4121B

• Product Type: Portable radio antenna

• Frequency Band: VHF

• Frequency Range: 160–174 MHz

• Antenna Style: Stubby

• Approximate Length: 3.5 inches or 9 cm

• GPS Support: Yes

• Frequency Color Code: Brown

• Mounting Style: Direct mount

• Safety Approval: Approved for select FM and UL-certified configurations

Package Contents

• One Motorola PMAD4121B VHF/GPS stubby antenna

Radio and other accessories are sold separately.

Stubby Antenna Benefits

The compact design makes this antenna ideal for users who wear their radios on a belt, vest or uniform. It reduces antenna bulk and is less likely to catch on clothing or nearby equipment than a full-length whip antenna.

A stubby antenna may not provide the same fringe-area performance as a properly matched full-length whip antenna. Actual range depends on terrain, buildings, radio power and system configuration.

GPS Information

The PMAD4121B supports GPS reception when installed on a compatible GPS-equipped Motorola radio. Radios without integrated GPS can still use the antenna for VHF communications, but the antenna will not add GPS capability to the radio.

Important Frequency Information

The PMAD4121B is designed specifically for VHF radios operating within the 160–174 MHz frequency range. It is not compatible with radios programmed exclusively below 160 MHz or with UHF radio models.

Verify your radio model and operating frequencies before purchasing.

FM and UL Approval Information

This antenna may be used with select FM or UL-approved Motorola portable radios. The antenna itself does not make a standard radio intrinsically safe.

To maintain intrinsic-safety certification, every component—including the radio, battery, antenna and connected accessories—must be approved for use together under the applicable certification standard.

Ideal Applications

• Public safety communications

• Oil and gas facilities

• Utilities and infrastructure

• Manufacturing plants

• Chemical processing facilities

• Construction operations

• Transportation and logistics

• Replacement of a damaged or missing antenna

Why Buy from Delmarva Two-Way Radio?

Delmarva Two-Way Radio supplies genuine Motorola Solutions accessories and knowledgeable support to help you select the correct antenna for your radio system. Contact us if you need assistance confirming radio compatibility, frequency range or intrinsic-safety requirements.