GOOZEEZOO 250mW YouLoop Portable Passive Magnetic Loop Antenna with Low Loss Broadband BALUN for HF and VHF 10KHz-30MHz Receiving Antenna

[What is it] This is a super portable passive HF/VHF loop antenna designed for super low NF/MDS receivers like the Airspy HF+ Discovery. It also works to some extent with the RTL-SDR V3 in direct sampling mode if you enable RTL AGC ^^ [Wide
Frequency] HF: 10kHz to 30 MHz;
VHF: up to 300 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 Youloop 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 adjustment 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) ^^ Youloop antenna is the generalization of Mobius circuit, in which the balanced electronic shielding layer is used as the center of the multi turn circuit ^^ The remaining turns operate within the shield. For large wavelength, that is, this structure is electrically balanced. Compared with the antenna size, when the lambda (LAMBDA algorithm in antenna design) is large, it is helpful to eliminate the electrical noise in the lower frequency bands, which are the places where most of the electrical noise energy is concentrated. In order to keep the electric balance free from the influence of the transmission line, a low loss miniature balun is used ^^ [Note] This loop antenna for hf is not waterproof, if you use it outdoors, please do waterproof treatment yourself, such as waterproof glue