Kaito KA35. Shortwave active antenna … 100 kHz to 30 mhz
It features an interchangeable Ferrite element (that provides a degree of directionality) and a telescopic whip . This antenna has a built-in fixed battery. This battery is rechargeable via the built-in solar cell, the supplied AC adapter or via a computer USB cable. Output is to a junction cable that, in turn, has output to a 3.5mm mini plug.to radio antenna input. Ferrite coupler is missing . indoor use only.