As suspected, we're changing the schedule (due to a lack of full sun and to support the school contacts previously arranged in Alaska).
The current schedule is below. We may need to adjust again; changes will be communicated at the AO-51 website and here.
AO-51 Mode Change Schedule
February 21 (~2145 UTC) [Eclipses should end around Feb. 24/25]
Dual Voice Repeaters : Mode V/U FM Voice Repeater (no PL tone needed) Uplink: 145.920 MHz FM Downlink 435.300 MHz FM
Mode L/U FM Voice Repeater (no PL tone needed) Uplink: 1268.703 MHz FM Downlink 435.150 MHz FM
March 1 (~1005 UTC)
Mode V/S Voice Repeater (no PL tone needed) Uplink: 145.880 MHz FM Downlink 2401.200 MHz FM
March 4 (~0945 UTC)
Mode V/U FM Voice Repeater (no PL tone needed) Uplink: 145.920 MHz FM Downlink 435.300 MHz FM
Mode L/U PacSat BBS Uplink: 1268.703 MHz FSK 9k6 baud Downlink 435.150 MHz FSK 9k6 baud
March 6 (~2115 UTC)
Mode L/SU FM Voice Repeater (no PL tone needed) Uplink: 1268.703 MHz FM Downlink1 2401.200 MHz FM Downlink2 435.300 MHz FM (low power)
March 11 (~1000 UTC) [Eclipses return around March 12/13]
Mode V/U FM Voice Repeater (no PL tone needed) Uplink: 145.920 MHz FM Downlink 435.300 MHz FM
Mode L/U PacSat BBS Uplink: 1268.703 MHz 9k6 baud Downlink 435.150 MHz 9k6 baud
As always, command stations may need to reconfigure modes in order to collect telemetry as needed.
Remember that power management may be running, and the transmitter(s) will shut OFF during periods of eclipse and/or low battery voltage.
73,
Mark N8MH AO-51 Command Team
Mark L. Hammond [N8MH]