Car Radio Antenna Automatic Power Booster Kit 12V DC Stainless Steel 990mm for Improved AM/FM Reception

If you experience weak or intermittent radio signal while driving, this automatic power booster antenna kit delivers a reliable upgrade to your vehicle’s existing setup. Designed to replace a standard antenna or enhance a factory system, it automatically extends and retracts to protect the mast when not in use. The integrated micro relay and 3C-2V coaxial cable ensure consistent signal transmission. Built from stainless steel with a five-section mast reaching 990mm, this antenna is practical for daily driving, long journeys, or even older cars needing a reception boost. Its waterproof construction and adjustable mount make installation straightforward on most vehicles.

Features and Construction

This antenna kit combines automatic operation with durable materials for long-lasting performance. Key features support easy installation and reliable AM/FM reception.

Automatic Power Operation

The antenna uses a built-in micro relay to raise and lower the mast automatically with the ignition, or you can connect the green control line for manual control. This reduces wear from accidental damage and keeps the mast stored when not needed. Working voltage range is DC10V-14V with a current draw of 0.7±0.2A.

Five-Section Stainless Steel Mast

The mast is made from stainless steel and divides into five sections, extending to a full length of 990mm. This setup provides good AM/FM receiving performance while remaining compact when retracted. The top force rating exceeds 4KG, indicating solid resistance against wind and vibration during use.

Low Noise and Waterproof Design

Noise level is kept below 50dB, helping to maintain clear audio reception. The entire unit is waterproof, making it suitable for external mounting in all weather conditions. The protective bottom plate measures 305mm, adding stability.

Uses and Placement

This antenna is designed for vehicle use and fits a wide range of cars, vans, and trucks. Its adjustable mounting angle accommodates different body shapes and installation preferences.

Event or Professional Use

For fleet vehicles or those used in commercial contexts, this antenna offers reliable reception without constant manual attention. The automatic raise/lower function is convenient for vehicles that are frequently parked in garages or under low-clearance areas.

Everyday Home Use

Ideal for personal cars, it improves AM/FM radio clarity during daily commutes or road trips. The simple wiring connection (red to positive, black to ground, green to control or constant positive) makes it a practical DIY upgrade for many drivers.

Benefits and Buying Value

This kit offers long service life and low ongoing maintenance, making it a cost-effective replacement for original equipment antennas.

Reuse and Low Maintenance

The mast is rated for over 50,000 cycles of extension and retraction, supported by the built-in micro relay. The stainless steel construction resists corrosion, and the waterproof housing reduces the need for frequent cleaning or replacement.

Why Choose This Product

With its automatic function, low noise performance, and 990mm mast length, this antenna balances signal reception with practical durability. The inclusion of a 3C-2V coaxial cable (75 ohm impedance) and adjustable 0-30 degree mounting angle ensures compatibility with most vehicles. It is a straightforward, reliable choice for improving in-car radio.