TRANSMITTER ARCHITECTURE
RECEIVER ARCHITECTURE
GROUND STATIONS SPECIFICATIONS
- KSAT
Data acquisition-High data rate modem
Specifications | Units | Values |
---|---|---|
Maximum sampling frequency | [Msps] | 600 |
Maximum bandwidth | [MHz] | 75 |
Modulation schemes | - | BPSK,QPSK, SQPSK, 8PSK,16APSK, 16QAM,32 APSK |
FEC techniques | - | Convolutional, Reed-Solomon, LDPC |
Antenna performance
S-band
Specifications | Units | Downlink | Uplink |
---|---|---|---|
Reflector size | [m] | 3.7 | |
Frequency band | [MHz] | 2200-2300 | 2025-2110 |
G/T | [dB/K] | 12.6 | - |
Polarisation | - | RHCP/LHCP | |
EIRP | [dBW] | - | 44.8 |
TT&C services
Specifications | Units | Downlink | Uplink |
---|---|---|---|
Bandwidth | [MHz] | 5 | |
Sampling frequency | [Msps] | 5 | 1 |
Modulation schemes | - | PCM/FM, FSK, BPSK, QPSK, OQPSK | |
Coding/decoding techniques | - | Viterbi decoding, Reed Solomon, Convolutional Encoding |
- ISIS
S-band | VHF | UHF | ||||
Specifications | Units | Downlink | Downlink | Uplink | Downlink | Uplink |
---|---|---|---|---|---|---|
Antenna size | [m] | 2 | 3.2 | 3 | ||
Frequency band | [MHz] | 2200-2500 | 143 – 148 | 432 – 440 | ||
Antenna beamwidth | [°] | 5.1 | 52 | 30 | ||
G/T | [dB/K] | 4.9 | - | - | - | - |
Antenna gain | [dB] | 31.35 | 13.2 | 16.3 | ||
Overall noise figure | [dB] | 15 | 1.6 | - | 2 | - |
Antenna polarisation | - | RHCP/LHCP | RHCP-LHCP | RHCP-LHCP | ||
Data rates | [kbps] | 14.4 – 115.2 | 1.2 – 9.6 | 1.2, 2.4, 4.8, 9.6 | 1.2 – 9.6 | 1.2, 2.4, 4.8, 9.6 |
RF output power | [W] | - | - | 100 | - | 120 |
Modulation schemes | - | - | Raised-Cosine BPSK, AFSK, FSK, GMSK. | AFSK, FSK, BPSK | Raised-Cosine BPSK, AFSK, FSK, GMSK. | AFSK, FSK, BPSK |
Communications protocol | - | - | AX.25 | AX.25 | AX.25 | AX.25 |