[amsat-bb] AO-51 Mode Change (NEW MODE V/US)

Andrew Glasbrenner glasbrenner at mindspring.com
Fri Jan 25 15:38:05 PST 2008

This morning, January 25th, AO-51 was switched to a new mode. Currently both 
the S band downlink of 2401.200 and the 435.300 downlink are on and tied 
together to the 145.920 receiver. This creates a single repeater that can be 
heard on either downlink. In the past the satellite power budget would not 
allow simultaneous S and U downlinks for more than a few moments, but the 
current no eclipse season allows us try try this new combination. The L/U 
BBS and U band telemetry will be off during this period, except for brief 
periods when command stations will be collecting telemetry. During these 
passes, the S band downlink may be shut off temporarily.

Give this new mode a try this weekend. If you like using S-band AND working 
lots of stations, this mode is for you. Currently we plan to run this mode 
through the end of the month.

73, Drew KO4MA

More information about the AMSAT-BB mailing list