![]() Now let’s look at the steps for tuning a dipoleĪntenna. Some models allow a wider scan of a single band or multiple bands. You can watch for the SWR value to dip to a minimum value, and see the precise frequency for which the antenna is currently trimmed. Using the built-in menus and controls allows the user to move through a range of frequencies while observing the SWR readout. It connects to the feed line, generates its own RF signals for the antenna system, computes SWR, and displays it along with the frequency. The most common tool used to help you adjust the antenna is an antenna analyzer. Should adjust for a low SWR in your antenna system. Indicate greater reflection and less efficient power transfer. Reflection and efficient power transfer to the antenna, while higher SWR values Your antenna system with the reflected power. The standing wave ratio (SWR) is a comparison of the forward power in Little power reflection due to some impedance mismatch at the antenna feed Nearly all antenna systems will have at least a Your transmitter’s power will be reflected back down the feed line instead of Impedances match, your antenna system will radiate efficiently. Trimmed, the antenna feed point will present an impedance that is closely Length to the operating frequency you plan to use. Trimming a dipole antenna means adjusting antenna You a lot of frustration and get you on the air in a short amount of time. Learning to tune an antenna is important to ham radio operation. You’ve measured twice and cut once, yet the SWR readings are higher than you think they should be.Īlthough it’s not exactly a crucial life skill, ![]() You’ve gone to great lengths to make sure your antenna is cut for the proper frequency using the 468/MHz formula. ![]()
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