Enhanced Frequency Range: Designed for RTL-SDR, this 1/9 HF antenna balun supports a wide frequency range from 160M to 6M, making it suitable for a variety of amateur radio applications Design: This long-wire HF antenna is equipped with robust antenna input protection to reliable performance and , protecting your device from potential environmental damage Optimal Performance: This antenna is ideal for "" converters, enhancing signal reception and transmission, providing excellent communication capabilities for amateur radio enthusiasts Excellent specifications and low insertion loss Maximum input power: +28dBm, mainly designed for 160m-6m amateur band Connector: SMA female The product appearance and printed words depending on the batch, but this does not affect use Color: As Shown Material: PCB Package Contents: 10 x 1:9 HF Antenna Balun Only the above package content, other products are not included. 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.