The -30+ loop antenna is a popular broadband antenna, perfect for shortwave () listeners and amateur radio (HAM) operators on urban balconies, rooftops, etc. This portable indoor shortwave loop antenna is a simple kit that includes all the necessary kits. modular, easy to install in limited spaces such as balconies and rooftops. Excellent directivity can help you reduce noise and improve the signal-to-noise ratio; you can simply change the antenna orientation to align the virtual point of the antenna with the interfering signal, thus minimizing specific near-field interference for better results. Noise suppression can reach 30 dB compared to longline antennas. It can detect weak signals that are overwhelmed by noise. The figure-8 pattern provides deep virtual points to further reduce interference. Do not connect to the transmitter as this will damage the preamplifier. Listening to shortwave radio is an exciting pastime, but for city dwellers, the experience is often disappointing. We