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Small Satellite Store and Forward Communications

The history of Store and Forward Communications

Small Satellites carrying Store and Forward transponders

Analogue S&F

Satellite Launch Storage Service
SCORE 1958 Tape Experimental

Digital S&F

Some of the characteristics of digital Store and Forward satellites are listed below.

Satellite Launch Storage
(MBytes)		 Data rates
(kbps)		 Processor Contractor User Service / 
UoSAT-1 1981     1 University of Surrey, UK   Experimental/Amateur service
UoSAT-2 1984 128 kByte 1.2 1,2 University of Surrey, UK   Experimental/Amateur service
GLOMR 1985   1.2 3 DSI, US US DOD US DOD
UoSAT-3 1990 4 1.2, 9.6/1.2, 9.6 1,2,3   VITA (US) / Satellife (US) Experimental/Amateur service
OSCAR-16 (PACSAT) 1990       AMSAT US   Amateur service
OSCAR-18 1990 8         Amateur service
SECS 1990 3     DSI, US US DOD (Navy)  
MACSAT 1990   1.2,2.4/1.2,2.4 3 DSI, US DARPA US  
Microsat constellation 1991   9.6/9.6   DSI, US DARPA US  
UoSAT-5 1991 13 1.2, 9.6/1.2, 9.6 2, 3     Amateur service
KitSat-1 1992 16 1.2, 9.6 2, 3 SSTL, UK   Radio Amateur service
S80/T 1992 16 1.2,9.6 2, 3 SSTL, UK Matra, CNES, France Experimental, 
KitSat-2 1993 16 1.2, 9.6 3,? SSTL, UK SATREC, S.Korea Radio Amateur service
PoSAT-1 1993 32 9.6, 38.4 3,4 SSTL, UK   Portuguese consortium
Radcal 1993           USAF
Healthsat-2 1993 48 9.6, 38.4 3,3,4 SSTL   Satellife (US)/ Datatrax (US)
FASat-Alfa 1995 280 9.6, 38.4, 76.8 3,5 SSTL Chilean Air Force Military (Chilean AF)
GONETS 1992-1996           Military and civil
FAISAT-2V              
ORBCOMM constellation 1995-2000            

Key to table

Type  
1 1802 based
2 Z80 based
3 Intel 80186 based
4 Intel 80188 based
5 Intel 80386 based

 

  

Main microprocessor
(1) 1802
(2) Z80
(3) 80C86
(4) 80C186
(5) 80386EX

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