Tag: MSK144

via the ARRL: Caution Urged in Using High Duty Cycle Digital Modes on Satellites

Satellite enthusiasts planning to try FT8 or MSK144 via satellite are being urged to use caution or possibly to avoid digital modes altogether in light of problems being blamed on the modes’ high duty cycle. Stations have reported problems getting into satellite transponders, even during favorable passes, which were traced to digital-mode signals in the […]

Quicker-Turnaround Digital Modes in Experimental Stage for WSJT-X Suite

Recent sporadic-E propagation openings on 6 meters and elsewhere have pointed up the need for a digital mode having faster turnaround time than currently available software versions offer. A recent WSJT-X reflector discussion allowed that, while the slow ’JT modes like JT65 and JT9 have excellent sensitivity, their 1-minute long transmissions may not permit completion […]

New Digital Modes Gain Traction for Moonbounce, but Occasionally Show Up on HF

In December, Joe Taylor, K1JT, released the latest version (1.7) of his WSJT-X software suite, designed to facilitate basic Amateur Radio communication using very weak signals (WSJT stands for “Weak Signal communication by K1JT”). Version 1.7 included the new modes MSK144 and QRA64, as well as ISCAT (ionospheric scatter). MSK144 and QRA64 (and QRA64A) are […]

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