The Scientific Telemetry System SSNI

Transmission Parameters

1.7 GHz-Telemetry
    frequency:		1701.0 MHz
    polarization:	RHC (polarization loss up to 3dB)
    power:		t.b.d. (max. 10W)
    modulation:		t.b.d. (BPSK/FSK)
    data rate:		524.3 kbps, biphase 1048.6 kbps, NRZ

137 MHz-Telemetry
    (only back-up)
    frequency:		136.35 MHZ, 137.85 MHz
    data rate: 		65.5 kbps
    all other parameter as CORONAS-I
    
Improvements of SSNI

increased telemetry data rate up to 1 Mbps
increased size of memory unit up to 32 MB
connected VUSS and SUFR to SSNI
designed 4 parallel channel for high rate instruments
design of command line for SSNI uplink
provided control possibilities for the instruments by SSNI command line