Reception on the NDB band as well as on 630m. His simple-to-build active whip has beenĮmployed around the world and is being used by many LF'rs for dependable Loops can be very effective at nulling noise, particularly if it is coming from oneĭirection, and vastly improving LF receive-capabilities.Īnother popular solution and one that can be quite effectiveĪt lowering noise levels and improving overall signal-to-noise is the use of a Levels can often be overcome by using loops, either resonated or broadband. Providing your location is not inundated with high noise levels. Even untuned, this system will allow you to receive suitably on 630m With a few ground radials, such an antenna can evenīe used for transmitting, if suitably resonated, but that's another topicĪltogether. This, in effect, allows your dipole toĪct as a top-loaded 'T', with the coaxial feedline now acting as the verticalĮlement and the dipole section as a capacitive tophat. Best results will be had with the coaxial feed's shield lifted from You can hear on 630m using one of your low band antennas, such as an 80m or 40mĭipole. That matter, even to transmit effectively. I can assure you that big antennas are definitely not needed to listen or for The Mini-Whip at University of Twente's (Netherlands) Remote Receiverīig antennas and lots of space to operate on 630m or even to listen on the band.
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