[1] With it, it is possible to downconvert the 118MHz to 138MHz aviation band to a regular radio, which can cover the received SW shortwave band.<br> So that ordinary radios can easily achieve aviation band reception.<br> [2] High resistance amplifier<br> It can achieve good matching and operation with magnetic rods, passive small loop antennas, rod/whip antennas, and other antennas. Improve reception performance.<br> Can achieve high impedance antenna input matching for first generation malachite or standard 50 ohm input receivers and handheld devices.<br> Compact and portable, with a built-in 700mAh battery and a USB-C port for charging.<br> Wide coverage, can achieve frequency conversion from 118M-138M to 8M-28MHz, and the vast majority of shortwave radios can cover<br> frequency gain: Approximately 10dB.<br> HiZ amplification frequency: 1khz-150MHz<br> Battery capacity : 700mAh<br> charging time : about 2 hours<br> Colour: Black<br> Material: Aluminum Alloy<br> Package Contents:<br> 1* frequency converter (Due to different product batches, the appearance , which does not affect the use)<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.<br>Note: <br>1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. <br>2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!<br>About Shipping: <br>1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly.<br>2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.<br>3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping!