VHF 146–174 MHz 15cm Heliflex Antenna

The Motorola NAD6502AR VHF 146–174 MHz Heliflex Antenna is a durable, wide-range VHF antenna designed to provide reliable transmit and receive performance for compatible Motorola portable two-way radios.

Operating across the broad 146–174 MHz VHF frequency range, the NAD6502AR provides coverage across a substantial portion of the commercial VHF band, making it a versatile antenna option for compatible Motorola radios.

The antenna features a 15 cm (approximately 6-inch) Heliflex design, providing a balance between dependable communication performance, flexibility, and comfortable everyday portable-radio use.

Motorola constructs the NAD6502AR with a one-piece finish, steel core, and spiral-wound conductor designed to provide optimal radiation characteristics.

Its flexible Heliflex construction allows the antenna to bend during normal movement, helping improve comfort when the portable radio is worn on a belt, carried on a vest, or used throughout an active workday.

The flexible design also allows the antenna to accommodate incidental contact with clothing, equipment, shelving, vehicle interiors, and other surrounding objects during everyday professional use.

The NAD6502AR is an excellent replacement for a lost, damaged, bent, or worn original antenna and can also be kept as a spare for businesses and organizations maintaining fleets of compatible Motorola portable radios.

Key Features

• VHF Heliflex antenna

• 146–174 MHz frequency range

• Broad VHF frequency coverage

• 15 cm antenna length

• Approximately 6 inches long

• Flexible Heliflex construction

• One-piece antenna finish

• Steel core construction

• Spiral-wound conductor

• Designed for optimal radiation characteristics

• Designed for compatible Motorola portable two-way radios

• Provides transmit and receive antenna functionality

• Suitable for indoor and outdoor professional applications

• Flexible construction accommodates normal movement

• Suitable for belt-worn portable radios

• Direct replacement for compatible original antenna

• Useful as a spare antenna for radio fleets

• No integrated GPS

• No programming required

• No external power required

• Portable radio sold separately

• Genuine Motorola Solutions accessory

• Motorola part number: NAD6502AR

• Base part number: NAD6502

Frequency Range

The NAD6502AR operates across:

146–174 MHz

This places the antenna within the VHF frequency band.

Its broad frequency coverage allows it to support compatible Motorola VHF portable radios operating throughout the 146–174 MHz range.

The radio's programmed operating frequencies must fall within the antenna's supported range.

Compatible Radios

Documented applications include:

• Motorola CP100d

• Motorola CP125

• Motorola CP150

• Motorola CP185

• Motorola CP200

• Motorola CP200d

• Motorola CT150

• Motorola CT250

• Motorola CT450

• Motorola DP1400

• Motorola EX500

• Motorola EX560

• Motorola EX600

• Motorola EX600 XLS

• Motorola GP Series portable radios

• Motorola HT750

• Motorola HT1250

• Motorola HT1250 LS

• Motorola HT1250 LS+

• Motorola HT1550

• Motorola HT1550 XLS

• Motorola PR400

• Motorola PR860

• Select additional compatible Motorola VHF portable radios

Motorola's current regulatory documentation specifically approves the NAD6502AR for the VHF DP1400, while the antenna has also been widely used across Motorola's commercial and professional portable-radio families.

Always verify both the portable radio model and programmed operating frequency before ordering an antenna.

Heliflex Antenna Design

The NAD6502AR features a:

15 cm / Approximately 6-Inch VHF Heliflex Antenna

Motorola's Heliflex construction provides a flexible antenna design intended for reliable portable-radio communications.

The flexible configuration makes the antenna convenient when the radio is:

• Worn on a belt

• Carried on a work vest

• Used while walking

• Used while climbing or bending

• Carried around machinery or equipment

• Used inside vehicles

• Used throughout extended work shifts

The flexible construction allows the antenna to accommodate normal movement and incidental contact during everyday professional use.

Antenna Construction

Motorola specifies the NAD6502 with:

• One-piece finish

• Steel core

• Spiral-wound conductor

• Flexible Heliflex construction

These design characteristics are intended to provide optimal radiation characteristics while maintaining the flexibility required for portable-radio applications.

Broad VHF Coverage

One of the primary advantages of the NAD6502AR is its broad:

146–174 MHz VHF frequency range

This provides substantially wider frequency coverage than many frequency-specific Motorola VHF antennas.

For organizations maintaining multiple compatible VHF radio models, this broad coverage can make the NAD6502AR a useful replacement or spare antenna when the radios operate within the supported frequency range.

Important

The NAD6502AR is a VHF Heliflex antenna designed for operation from:

146–174 MHz

It is not a UHF antenna.

Do not select a portable radio antenna based solely on physical fit. Antennas are designed for specific frequency ranges, and the antenna must match both the radio platform and its programmed operating frequencies.

The NAD6502AR provides broad VHF frequency coverage, but compatibility with a radio should still be verified before ordering.

Always verify the radio model and operating frequency.

The portable radio is not included.

Specifications

Manufacturer: Motorola Solutions
Part Number: NAD6502AR
Base Part Number: NAD6502
Accessory Type: Portable Radio Antenna
Antenna Type: Heliflex
Band: VHF
Frequency Range: 146–174 MHz
Length: 15 cm / Approximately 6 Inches
Core: Steel
Conductor: Spiral-Wound
Construction: One-Piece Finish
Flexible: Yes
Integrated GPS: No
Programming Required: No
External Power Required: No
Radio Included: No
Application: VHF Portable Two-Way Radio Communications