Sell 100K-50MHz RTL-SDR Supporting long Antenna 9:1 Impedance Transformer Balun BNC Hot Sale best price

Description: Brand new and High quality Using Frequency: 100K - 50MHz Size: 56 x 58 x 28mm (Excluding protrusions) RTL-SDR supporting long- antenna 9:1 impedance transformer (BALUN). Connectors with BNC. Frequency: 100K-50MHz. Compact, easy accessibility, and QRP stations set up for outdoor use . (Note: if do long-term outdoor use, you must use the shell silicone adhesive sealing the upper and lower lid to make processed.) Only impedance transformer , excluding long- wire antenna . Wires can use various existing wire. The length of antenna need according the actual environment to set up, to use the insulator on both ends.