CX7BY's BULLETIN

UOSAT.TXT

Msg:   1287
De:    CX7BY
Fecha: 18/08/91
Hora:  20:25:44
Tema:  Satelite

HR AMSAT NEWS SERVICE BULLETIN 196.01 FROM AMSAT HQ
SILVER SPRING, MD JULY 15, 1991
TO ALL RADIO AMATEURS BT
 
UOSAT-F Launch Information: Part I
 
UoSAT-F is now scheduled to be launched on 17 July at 01:46:31 UTC. The launch 

window is 4 minutes long and will exist every day after the nominal launch 
date, at the same UTC time.
 
UoSAT-F (to become UoSAT-5 / UoSAT-22 after successful injection into orbit)
will support both amateur and non-amateur RF links. 
 
The satellite's primary non-amateur mission is to provide store-and-forward 
communications for SatelLife, an organization formed by 1985 Nobel Prize 
winner Dr. Bernard Lown. SatelLife will use UoSAT-F to start a non-profit 
electronic mail network for health professionals. Initially, five African 
medical schools will use "HealthNet" to exchange electronic mail and receive 
up-to-date medical literature. Some of the HealthNet stations have already 
being commissioned and demonstrated on UoSAT-OSCAR-14. HealthNet is a direct 
application of store-and-forward satellite communications techniques developed 

within the Amateur Service, and demonstrated by the use of several amateur
satellites.
 
As well as serving HealthNet on non-amateur frequencies, UoSAT-F will transmit 

and receive on Amateur Satellite Service channels. Modulation and data formats 

will be exactly as used by UoSAT-OSCAR-14: AX.25 data using 9600 bit/second 
FSK modulation. The frequency plan (as on UO-14 and the Microsats) is Mode-B: 
uplink on 2 meters and downlink on 70 cm. Stations already equipped for UO-14 
operation will be able to receive UoSAT-F with the software and hardware which 

they already use. 
 
UoSAT-F will transmit telemetry, status messages, and files, in the pattern 
typical of UO-14. Telemetry and status messages will be in the same format as 
that on UO-14. Files will be broadcast using the PACSAT Broadcast Protocol, 
already in use on PACSAT, LUSAT and UO-14. These broadcasts can be received by 

the PE1CHL NET.EXE program or the G0/K8KA program PB.EXE.
 
[The AMSAT News Service (ANS) would like to thank Jeff Ward (G0/K8KA) for the
 information which went into this bulletin.]