Question T8D10
From subelement T8 - T8D
Which of the following operating activities is supported by digital mode software in the WSJT-X software suite?
Why is this correct?
WSJT-X software supports all three activities listed. Earth-Moon-Earth (EME) communication uses weak-signal modes like JT65 to bounce signals off the moon. Weak signal propagation beacons help test propagation conditions using low-power digital modes. Meteor scatter uses brief signal reflections off meteor trails. The software was specifically designed by K1JT to handle these challenging weak-signal scenarios where traditional voice modes would fail.
Memory tip
When you see 'All these choices are correct' as an option, verify each choice individually rather than looking for one 'best' answer. WSJT-X questions often test knowledge of the software's comprehensive weak-signal capabilities across different propagation modes.
Learn more
WSJT-X excels in weak-signal digital communication where path loss is extreme. EME experiences 250+ dB path loss bouncing signals 477,000 miles to the moon and back. Meteor scatter relies on fleeting ionized trails lasting mere seconds. Propagation beacons operate with minimal power to test band conditions. These scenarios demand the ultra-sensitive decoding algorithms that make WSJT-X invaluable for pushing the limits of amateur radio communication.
Think about it
Why do you think WSJT-X uses such precise time synchronization and short transmission windows for these different propagation modes?