RocketBox HD500-MOS Linear Amplifier

⚡ Rocketbox HD500 Linear Amplifier – Product Description

The Rocketbox HD500 Linear Amplifier is a high-performance, heavy-duty amplifier engineered for serious CB and 10-meter radio operators who demand maximum power, strong audio output, and reliable performance. Built in the USA and known for its rugged construction, the HD500 is designed to dramatically increase your radio’s transmit strength while maintaining clean, consistent signal quality.

🔥 Featured Product

🚛 Overview

Take your communication to the next level with the Rocketbox HD500, delivering up to 500 watts of output power for extended range and stronger signal penetration. Designed for mobile and base station setups, this amplifier provides the extra punch needed to cut through noise and reach farther distances.

With support for AM, FM, SSB, and CW modes, the HD500 offers versatility for a wide range of operating styles. Its auto SSB delay, multi-level power settings, and built-in receive preamp ensure smooth switching, customizable output, and improved reception clarity.

🔧 Key Features

• 500 Watt Output Power – Boosts transmission range and signal strength
• AM / FM / SSB / CW Compatibility – Flexible operation across multiple modes
• Hi / Medium / Low Power Settings – Adjustable output for different conditions
• Auto SSB Delay Circuit – Smooth transition for sideband operation
• Built-in Receive Preamp – Enhances incoming signal clarity
• Wide Frequency Coverage (26–30 MHz) – Ideal for CB and 10-meter applications
• Low Drive Requirement (2–4 Watt Input) – Compatible with many radios
• Heavy-Duty Construction – Built for durability and long-term use

⚙️ Performance & Specifications

• Output Power: Up to 500 watts (PEP varies by setup)
• Input Drive: 2–4 watts dead key / up to ~80 watts peak
• Power Supply: Typically 12–14.5V DC (mobile) or AC base versions available
• Current Draw: ~50 amps under load
• Recommended SWR: 1.5:1 or lower for optimal performance

🎯 Ideal For

• Advanced CB radio operators
• Long-range communication setups
• Truck drivers and base station users
• Enthusiasts looking to significantly boost signal power

⚠️ Important Note

This amplifier is typically marketed for export, experimental, or industrial use, and operating it on certain frequencies (like standard CB channels in the U.S.) may violate FCC regulations. Always check local laws and regulations before use.

⚡ Why Choose the Rocketbox HD500?

The Rocketbox HD500 stands out for its raw power, versatility, and proven performance. With its combination of high output, adjustable controls, and durable design, it’s a go-to choice for operators who want to push beyond standard radio limits and achieve maximum communication range and clarity.

**Important Use Restrictions:**  
- For industrial, scientific, medical, or export use only  
- Not legal for use on CB or Amateur bands in the U.S.  
- All sales are **final** – no returns or exchanges  
- Use a proper SWR meter and tune the antenna before operation  
- DO NOT exceed 14.2V supply voltage  
- Always modulate the transmitter to full power before adjusting SWR  

Disclaimer
This linear amplifier is sold for use on the 10-meter amateur radio band only. Any modifications to this equipment must comply with FCC regulations. If modified for use outside of approved amateur frequencies, the unit must be exported for lawful operation. TekShack does not endorse or support the use of linear amplifiers on frequencies not authorized by the FCC.