1.Highly Secure and Reliable: Our short wave balun ensures the safety of your valuable data and provides a reliable platform for your business needs. 2.Stable Performance: fed half-wave antenna balun guarantees stable performance, allowing your business to run smoothly without any disruptions. 3.Powerful Functionality for Enhanced Efficiency: Our for ham hf antenna balunoffers a wide range of powerful features and tools to optimize your workflow and boost productivity. 4.User-Friendly Interface for Easy Management: With the 49:1 efhw antenna balun managing your business becomes effortless, thanks to its intuitive and user-friendly interface. 5.Exceptional Customer Support for Peace of Mind: We provide exceptional customer support to you have a smooth experience with our 49:1 ham radio balun. Model Number: 49:1 Balun This balun is a dedicated 49:1 balun for end fed antennas, which only needs to be equipped with a 20 meter long oscillator (remember it is a standard 20 meter) It can naturally resonate in four amateur bands of 7, 14, 21, and 28, and the influence of height variation on the resonance point is minimal Very suitable for HAM users with certain hands-on skills (making a 20 meter long vibrator yourself is sufficient) The magnetic ring is a specially customized magnetic ring, and the M seat is also customized and extended (the short M seat is connected to the M male and tightened to or loosened) The magnetic ring is fixed with a PCB and works stably and reliably for a long time Note: The advantage of end fed balun is that its bandwidth and gain are both NO:--1 resonant antennas The disadvantage is that the loss is that of conventional balun, so feed balun cannot be used continuously for a long time Withstand power 100WPEP (PEP is power) Data communication 100W is twice the power Remember to halve the power of FM and data communication modes such as FT8 Different factory batches may have slight differences in appearance, which not affect the applicability Colour:White Material:plastic Package Contents: 2 x Balun Short Wave antenna 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.