SSDL Ground Stations
[Station GSML specs]

Overview
 This site provides an overview and links to ground stations at Stanford University run by the Space Systems Developlment Laboratory (SSDL).
Stations SSDL-W6YX -- Deployed OSCAR station in foothills south of Stanford.
SSDL-Durand -- Experimental OSCAR station on the fourth floor of the Durand building.
SSDL-Dev -- A software development site with so station hardware, just software.
More
Info.		 Research pages:
SWIG - The Software Infrastructure Group.
SSDL - The Space Systems Development Laboratory.
Technology pages:
Mercury - ground station control system.
MGSN - Mercury Ground Station Network.
Contact SSDL-Durand Phone: 650-725-6794
Email: ssdl-gs _AT_ swig.stanford.edu

 SSDL-W6YX [control site] [GSML spec]
Status:
 Currently under construction.  Expected to complete end of August 2003.
Scheduling: Mercury control site (coming soon).
Location: 37.408N, 122.16W, 100m
Capabilities:
 Equipment/Pipeline Summary:

Antenna
 LNA
 Power Amp
 Frequencies
 Modem
 Data Protocol
~15db yagi
 ~20db
 100W
 TX:140-145MHz
RX:430-450MHz		 9600 baud FSK
 AX.25 (KISS)
~15db yagi ~20db 40W
TX:430-450MHz
RX:140-145MHz		 9600 baud FSK AX.25 (KISS)
~15db yagi
 ~20db 40W
 TX:430-450MHz
RX:430-450MHz		 9600 baud FSK
 AX.25 (KISS)
~15db yagi ~20db 100W
 TX:140-145MHz
RX:140-145MHz		 9600 baud FSK
 AX.25 (KISS)


Architecture: Hardware architecture:
Media: Video feed (coming soon).
Audio feed (coming soon).

 SSDL-Durand [control site] [GSML spec]
Status:
 Operational OSCAR station.  Reserved for experimental testbed so actual sate of functionality is dependent upon experiment time line.
Scheduling: Mercury control site.
Location: 37.408N, 122.16W, 100m
Capabilities:
 Equipment/Pipeline Summary:

Antenna
 LNA
 Power Amp
 Frequencies
 Modem
 Data Protocol
~15db yagi
 ~20db 40W
 TX:430-450MHz
RX:430-450MHz		 9600 baud FSK
 AX.25
IP over AX.25
~15db yagi ~20db 100W TX: 140-147MHz
RX: 140-147MHz
 9600 baud FSK
 AX.25
IP over AX.25

Hardware  exists for 1200 baud AFSK half or full duplex, 9600 crossband full duplex, and  38.4kbps as well.  Not integrated yet.  Need an audio level multiplexor to interconnect extra hardware.
Architecture: Hardware architecture:
  • 11 Jul 2003
  • Proposed architecture (08/2003)
  • (private page of hardware description)
Media: Video feed (coming soon).
Audio feed (coming soon).

SSDL-Dev [control site]
Status:
 Software development site without any ground station hardware.  Test site for software development.
Scheduling: Mercury control site.
Location: NA
Capabilities:
 NA
Architecture: NA
Media: NA



 


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