The Radio Amateur Satellite Corporation
(AMSAT) promotes its own version of Field
Day for operation via the amateur satellites,
held concurrently with the ARRL event.
For 2020, the event takes place during a 27-hour period from 18:00 UTC
on Saturday June 27th, 2020 through 2100 UTC on Sunday
June 28th, 2020. Those who set up prior to 18:00 UTC on
June 27th can operate only 24 hours.
AMSAT Director of Contests and Awards Bruce Paige, KK5DO, has
announced the rules for the 2020 event. The 2020 rules can
be found at https://www.amsat.org/field-day/.