This is the 28'th test flight of the new U4B tracker. For details see below.
Callsign is VE3KCL, WSPR transmission on 20m, is minute :08 and telemetry in minute :00 and telemetry call 0x4xxx
This is the 28'th test flight of the new U4B tracker. U4B-28 was assembled by Dave VE3KCL. This YouTube video explains the features of the U4B tracker: https://youtu.be/CqNZeh575xw