430-450 MHz Quarterwave Antenna - Unity Gain Black QWB430

Our review of the Laird Technologies QWB430 finds it a focused choice for technicians and radio users needing a simple, reliable 430-450 MHz quarterwave whip for Motorola style mounts. The bottom line is straightforward: this antenna delivers a clean unity gain performance with a brass button contact that improves feedpoint match and contact coverage, making installation and signal transfer more dependable. It is not a full-service base station antenna but is ideal where a compact, vehicle- or portable-mounted 1/4 wave solution is required.

Key Features

• Frequency Range: Covers 430-450 MHz to support radios and equipment operating in that band without retuning.
• Unity Gain: Provides a neutral radiation pattern so users can expect predictable coverage without amplified lobes that complicate placement.
• Brass Button Contact: The brass button feed contact improves electrical match at the feedpoint and increases the contact surface for more reliable connections.
• Motorola Style Compatibility: Designed for Motorola style mounts with a brass button interface, allowing quick swapping when used with the correct mount.
• Compact 1/4 Wave Form: The quarterwave length makes it a compact, low-profile option for vehicle and portable installs where space is limited.

Who It's For

The QWB430 is best for radio technicians, installers and hobbyists who need a straightforward, robust antenna for 430-450 MHz installations and who already use Motorola style mounts or can source that mount separately. It fits applications where a neutral antenna response is preferred and where durability at the feedpoint matters.

It is less suitable for users seeking high-gain or multi-band performance, or those who need an included mount. Buyers requiring an integrated mount should budget for a separate Motorola style mount sold independently.

Pros & Cons

Pros

• Solid unity gain performance delivers predictable coverage without unexpected pattern changes.
• Brass button contact yields a superior match and more contact surface for reliable connections.
• Compact 1/4 wave form is low profile and convenient for vehicle or portable use.

Cons

• Requires a Motorola style mount purchased separately, so additional cost and compatibility checking are necessary.

Specifications

Brand	Laird Technologies
Model	QWB430
Frequency Range	430-450 MHz
Gain	Unity gain (1/4 wave)
Color	Black
Feed Contact	Brass button for improved match
Mount	Motorola style mount required (sold separately)

Our Verdict

The Laird QWB430 is a practical, value-minded antenna for users needing a reliable 430-450 MHz quarterwave whip with improved feedpoint contact. It is recommended for installers and radio users who already have or can obtain a Motorola style mount and who want a simple unity gain solution rather than a high-gain or multi-band antenna.

Frequently Asked Questions

Do I get a mount with this antenna?
This antenna does not include a mount; you must order a compatible Motorola style mount separately.

What advantage does the brass button offer?
The brass button contact provides a superior match at the feedpoint and increases contact surface coverage for a more reliable electrical connection.

Is this antenna multi-band?
No, the QWB430 is a 1/4 wave antenna specified for the 430-450 MHz band and is not designed as a multi-band antenna.