Portable Magnetic Loop, GOOZEEZOO 250mW YouLoop Portable Passive Magnetic Loop Antenna with Low Loss Broadband BALUN for HF and VHF 10KHz-30MHz Receiving Antenna No Tuning Required

[Wide Frequency] HF: 10kHz to 30 MHz; VHF: up to 150 MHz; Maximum power: 250mW. Low loss broadband BALUN with a typical loss of 0.28 dB; If your radio environment has poor signal reception and strong electromagnetic interference, the hf loop antenna can enhance the signal and provide you with excellent reception, improving your shortwave listening
[High Performance] The sdr loop antenna is compact and is easy to carry and store. It is very convenient to assemble without asjustment and very suitable for broadcasting with limited space. The shortwave loop antenna is made of high-quality materials and is very durable which has good performance(Better performance than MLA type)
[Easy to Assemble] The radio antenna is easy to set up. It is compact and won't occupy too much space. (Pay attention to waterproof and lightning protection for outdoor use)
[Suitable Models] Hackrf, Radioberry, Rtl2832, Si473x radio, Any other SDR with MDS Less than or equal to -140 dBm
To further improve impedance matching and flatten the frequency response, a high impedance external preamplifier can be used near the antenna to provide a constant output impedance to the receiver

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