{"product_id":"active-magnetic-loop-antenna-sdr-hf-100khz-30mhz-low-noise","title":"Active Magnetic Loop Antenna SDR HF 100kHz–30MHz | FARAJIAJ","description":"\n\u003ch2\u003eFARAJIAJ Active Magnetic Loop Antenna – SDR \u0026amp; HF Radio Reception Made Easy\u003c\/h2\u003e\n\u003cp\u003eUnlock crystal-clear shortwave and medium wave reception with the \u003cstrong\u003eFARAJIAJ Active Magnetic Loop Antenna\u003c\/strong\u003e. Covering an impressive \u003cstrong\u003e100 kHz to 30 MHz\u003c\/strong\u003e frequency range, this low-noise, adjustable-gain antenna is the perfect companion for SDR (Software Defined Radio) enthusiasts, amateur radio operators, and shortwave listeners who demand clean, interference-free signals.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Frequency Coverage:\u003c\/strong\u003e 100 kHz – 30 MHz (LF, MF, HF \/ Shortwave)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Noise Design:\u003c\/strong\u003e Active magnetic loop circuit minimizes interference for crisp, clear reception\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Gain:\u003c\/strong\u003e Fine-tune signal amplification to suit your environment and receiver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReverse Connection Protection:\u003c\/strong\u003e Built-in circuit board protection prevents chip damage from accidental reverse polarity — giving you peace of mind during setup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Power Options:\u003c\/strong\u003e Compatible with a standard 9V battery (via battery buckle) or external power supply via terminal connectors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY Kit Format:\u003c\/strong\u003e Includes main board and all electronic components — ideal for hobbyists who enjoy hands-on building\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Versatile:\u003c\/strong\u003e Suitable for indoor and outdoor use with SDR dongles, shortwave radios, and HF transceivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e① Main Board (PCB)\u003c\/li\u003e\n  \u003cli\u003e② Electronic Components (for assembly)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Assembly Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eComponents must \u003cstrong\u003eNOT\u003c\/strong\u003e be soldered to the back of the circuit board — doing so will damage the chip.\u003c\/li\u003e\n  \u003cli\u003ePower wiring: \u003cstrong\u003eRed wire = Positive (+) | Black wire = Negative (–)\u003c\/strong\u003e. Always double-check polarity before powering on.\u003c\/li\u003e\n  \u003cli\u003eReverse connection protection is present but is not a substitute for careful assembly — always verify connections first.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho Is This Antenna For?\u003c\/h3\u003e\n\u003cp\u003eWhether you're a seasoned radio amateur, an SDR hobbyist exploring the HF bands, or a shortwave listener chasing distant stations, this active loop antenna delivers a significant improvement over passive antennas in noisy urban environments. Its compact loop design rejects local electrical interference, making it ideal for apartments, home shacks, or portable field use.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible With\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSDR dongles (RTL-SDR, HackRF, AirSpy, etc.)\u003c\/li\u003e\n  \u003cli\u003eShortwave \u0026amp; medium wave radios\u003c\/li\u003e\n  \u003cli\u003eHF transceivers and receivers\u003c\/li\u003e\n  \u003cli\u003eHam radio setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eLearn More About Radio Frequency Standards\u003c\/h3\u003e\n\u003cp\u003eFor technical standards related to radio equipment, visit the FCC or explore radio spectrum management resources at NIST – Radio Frequency Metrology.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/hdmi-splitter-cable-1-in-2-out-1080p-3d-dual-display\"\u003e1-In-2-Out HDMI Splitter Cable 1080P 3D – TV Monitor Projector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/displayport-to-hdmi-cable-4k-dp-adapter-pc-tv-projector-monitor\"\u003e1.8M DisplayPort to HDMI Cable 4K DP Adapter – PC TV Monitor\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What frequency range does this active magnetic loop antenna cover?\u003c\/h4\u003e\n\u003cp\u003eA: This antenna covers \u003cstrong\u003e100 kHz to 30 MHz\u003c\/strong\u003e, spanning the LF (low frequency), MF (medium wave), and HF (shortwave) bands — making it highly versatile for SDR listening, AM broadcast reception, and shortwave radio monitoring.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this antenna with an RTL-SDR dongle or similar SDR receiver?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This active loop antenna is fully compatible with popular SDR dongles such as RTL-SDR, HackRF, and AirSpy, as well as any HF receiver with a standard antenna input. It significantly improves reception quality in the 100 kHz–30 MHz range.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this come fully assembled or as a DIY kit?\u003c\/h4\u003e\n\u003cp\u003eA: This product ships as a \u003cstrong\u003eDIY kit\u003c\/strong\u003e that includes the main PCB and all electronic components. You will need to solder the components onto the board yourself. Note: components must only be soldered to the correct side of the board to avoid chip damage.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What power source does this antenna require?\u003c\/h4\u003e\n\u003cp\u003eA: The antenna can be powered by a standard \u003cstrong\u003e9V battery\u003c\/strong\u003e using the included battery buckle connector, or via an external power supply using the onboard terminal connectors. Always ensure correct polarity (red = positive, black = negative) before powering on.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What frequency range does this active magnetic loop antenna cover?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This antenna covers 100 kHz to 30 MHz, spanning the LF (low frequency), MF (medium wave), and HF (shortwave) bands — making it highly versatile for SDR listening, AM broadcast reception, and shortwave radio monitoring.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this antenna with an RTL-SDR dongle or similar SDR receiver?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! This active loop antenna is fully compatible with popular SDR dongles such as RTL-SDR, HackRF, and AirSpy, as well as any HF receiver with a standard antenna input. 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