In classic amateur radio operations, the need of a good time synchronization has always been a requirement, for contact logging purposes, or for example in APRS and packet radio systems.
Nowadays, in the weak-signals digital modes era, with time synchronized protocols like FT8 FT4 JT65 and JT9, an accurate time synchronization of your PC clock with an atomic time service has become mandatory.
Time sync has become a so important factor, that makes the difference between being able to make contacts and not to be able.
Synchronizing your computer time it may be very easy task, and sometimes a challenge.
Суббота, 21.12.2024, 18:22
An ARISS educational school contact is planned for Chris Cassidy KF5KDR with students at I.E.S. Pedro de Valdivia, Villanueva de la Serena, Spain.
SB PROP @ ARL $ARLP024
ARLP024 Propagation de K7RA
ZCZC AP24
QST de W1AW
Propagation Forecast Bulletin 24 ARLP024
From Tad Cook, K7RA
Seattle, WA June 12, 2020
To all radio amateurs
SB PROP ARL ARLP024
ARLP024 Propagation de K7RA
Sunspots made a solid reappearance over this reporting week (June 4
to 10) with average daily sunspot number rising from 3.3 to 14. As
expected, solar flux also increased, and the average daily 10.7 cm
solar flux rose from 69.6 to 71.3.
With renewed solar activity, so many radio amateurs staying home,
and the increasing popularity of new weak signal modes, there is a
lot happening on the air in amateur radio today.
Average daily planetary A index went from 6 to 5.1, while average
daily middle latitude A index changed from 5.7 to 6.1.
The outlook for the next 45 days has solar flux at
