MLA-30+ Active Loop Antenna 0.5–30MHz Low-Noise Shortwave

MLA-30+ (Plus) Active Loop Receive Antenna — Low-Noise Broadband Shortwave Reception

The MLA-30+ (Plus) Ring Active Loop Antenna is a high-performance broadband receiving antenna covering 0.5 MHz to 30 MHz (medium wave through shortwave). Designed for shortwave listeners (SWL) and radio amateurs (HAM), it delivers exceptionally clean signal reception even in compact living spaces such as apartments, balconies, or urban rooftops. Made in Mainland China.

Why Choose the MLA-30+ Loop Antenna?

• Ultra-Low Noise Reception: Reduces local-radiation noise by up to 30 dB compared to traditional long-wire antennas, helping you pull out weak signals buried in interference.
• Excellent Directivity: The figure-eight radiation pattern creates deep null points — simply rotate the antenna to minimize specific near-field interference sources and improve your SNR (signal-to-noise ratio).
• Wide Frequency Coverage: Covers 500 kHz to 30 MHz with no manual tuning required — plug in and start listening immediately.
• USB-Powered Convenience: Powered via standard USB cable (included), making placement flexible without complex power supplies.
• Weatherproof Outdoor Design: Rainproof housing and a stainless steel ring-shaped vibrator make this antenna suitable for long-term outdoor installations.
• Modular & Easy Installation: Self-contained feeders, a compact footprint, and modular construction mean quick setup on balconies, rooftops, window frames, or masts.
• Receive-Only: Optimized purely for receiving — do not connect to a transmitter.

Technical Specifications

Package Includes

• 1 × MLA-30+ Antenna with 10 m coaxial cable
• 1 × Stainless Steel Vibrator (ring element)
• 1 × T-connector (Tee)
• 1 × USB Power Cable (0.8 m)
• 1 × SMA Jumper Cable (60 cm)
• 2 × Stainless Steel Fixing Screws

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Frequently Asked Questions

Q: What frequency range does the MLA-30+ active loop antenna cover?

A: The MLA-30+ covers a broad range from 500 kHz (0.5 MHz) to 30 MHz, making it ideal for medium wave (AM broadcast), tropical bands, and all shortwave bands up to the 10-meter amateur band.

Q: Can I use the MLA-30+ loop antenna for transmitting?

A: No — the MLA-30+ is designed exclusively for receiving. Connecting a transmitter to this antenna will damage the internal preamplifier. Use it only with a shortwave or SDR receiver.

Q: How is the MLA-30+ antenna powered?

A: The antenna is powered via a standard 5V USB connection. An 0.8 m USB cable is included in the package, and power is delivered through the coaxial feed line to the antenna head — no separate power cable to the antenna element is needed.

Q: Is the MLA-30+ suitable for outdoor use?

A: Yes. The antenna features a rainproof housing and a stainless steel ring vibrator, making it suitable for long-term installation on balconies, rooftops, and similar outdoor locations. The included stainless steel fixing screws make mounting straightforward.

Q: Will the MLA-30+ help with interference and noise from nearby electronics?

A: Absolutely. The directional figure-eight pattern allows you to rotate the antenna and aim its null points at local interference sources (such as switching power supplies or LED lighting), significantly reducing unwanted noise and improving signal clarity.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.