| 12m station – uplink frequency |
7145 MHz–7250 MHz, step 1 kHz |
| 12m station – telemetry frequency |
8.025 GHz–8.4 GHz, step 1 kHz |
| 12m station – data transmission frequency |
7.75 GHz–9.0 GHz, step 1 kHz |
| 12m station – antenna diameter |
12m |
| 12m station – main reflector surface accuracy (RMS) |
≤0.5 mm |
| 12m station – sub-reflector surface accuracy (RMS) |
≤0.3 mm |
| 12m station – g/t (X-band) |
≥35+20lg(Fi/F0) dB/K (F0=7750 MHz) |
| 12m station – eirp |
≥74.4+20lg(Fi/F0) dBW (F0=7145 MHz) |
| 12m station – uplink modulation schemes |
PCM-BPSK-PM, PCM-CDMA-BPSK, spread BPSK, QPSK, SQPSK, UQPSK, PCM-PM |
| 12m station – downlink modulation schemes |
PCM-BPSK-PM, PCM-CDMA-BPSK, spread BPSK, QPSK, SQPSK, UQPSK, 8PSK, 16QAM, GMSK, 16APSK, PCM-PM |
| 12m station – feed uplink power tolerance |
≥200 W (continuous wave) |
| 12m station – bit sync acquisition range |
±0.3% Rs (symbol rate) |
| 12m station – standard TT&C total acquisition time |
≤15s (C/N0=51dBHz/35dBHz, Doppler ±150 kHz); ≤28s (43dBHz/27dBHz, Doppler ±150 kHz) |
| 12m station – spread-spectrum TT&C acquisition time |
≤2s (C/N0=37dBHz per channel, Rb=2kbit/s, Doppler ±150 kHz, Doppler rate 7.5 kHz/s) |
| 12m station – data transmission acquisition time |
≤3s @1 Mbps, Eb/N0 degraded ≤2.0 dB (BPSK, QPSK, SQPSK, GMSK, UQPSK, 8PSK, 16QAM, 16APSK) |
| 12m station – data demodulation loss (BER<1e-7) |
≤1.5 dB (5 Mbps–600 Mbps); ≤3.0 dB (>600 Mbps) |
| 12m station – target switching response time |
<300s |
| 12m station – telemetry demodulation loss (BER 1e-5) |
≤2.5 dB |
| 12m station – command loop check accuracy |
0.9999 |
| 12m station – time accuracy (GPS/BeiDou) |
better than 30 ns RMS |
| 12m station – telemetry/command/data code types |
RZ; NRZ-L/M/S; Biφ-L/M/S |
| 12m station – data recording channels |
2 |
| 12m station – single-channel recording rate |
≥2 Gbps |
| 12m station – recording bit error rate |
better than 1×10-11 |
| 12m station – acquisition/tracking elevation |
3° acquisition, 5° stable tracking (unobstructed) |
| 12m station – pointing accuracy |
better than 1/5 half-power beamwidth (<0.04°) |
| 12m station – tracking accuracy |
better than 1/10 half-power beamwidth (<0.02°) |
| 12m station – MTBF |
≥250 hours |
| 12m station – mttr |
≤0.5 hours |
| 12m station – service life |
10 years |
| 4.5m station – uplink frequency |
S: 2025-2120 MHz; X: 7100-7300 MHz; Ka: 27.5-30 GHz |
| 4.5m station – downlink frequency |
S: 2200-2300 MHz; X: 7700-9000 MHz; Ka: 17.7-20.2 GHz |
| 4.5m station – antenna diameter |
4.5m |
| 4.5m station – g/t |
Ka ≥29 dB/K; X ≥26.00+20lg(F/F0)dB/K (F0=8400 MHz) |
| 4.5m station – eirp |
Ka ≥71dBW; X ≥58dBW |
| 4.5m station – pointing accuracy |
better than 1/5 half-power beamwidth |
| 4.5m station – tracking accuracy |
better than 1/10 half-power beamwidth |
| 4.5m station – MTBF |
≥600 hours |
| 4.5m station – mttr |
≤0.5 hours |
| 4.5m station – service life |
≥10 years |
| 8m fixed station – antenna diameter |
8m |
| 8m fixed station – x-band uplink |
7145 MHz–7450 MHz, step 10 kHz |
| 8m fixed station – x-band downlink |
7500 MHz–9000 MHz, step 10 kHz |
| 8m fixed station – x main duplexer |
Uplink 7145-7235 MHz; Downlink 7500-9000 MHz |
| 8m fixed station – x extended duplexer |
Uplink 7235-7450 MHz; Downlink 8300-8500 MHz |
| 8m fixed station – s-band uplink |
2018.12 MHz–2120 MHz, step 100 Hz |
| 8m fixed station – s-band downlink |
2200 MHz–2301.88 MHz, step 1 kHz |
| 8m fixed station – s duplexer |
Uplink 2018.12-2120 MHz; Downlink 2200-2301.88 MHz |
| 8m fixed station – KA-band downlink |
25 GHz–27.5 GHz, step 10 kHz |
| 8m fixed station – antenna gain x-band rx |
Gr≥53.25+20lg(F/F0) dBi (LNA input, F0=8400 MHz) |
| 8m fixed station – antenna gain x-band tx |
Gt≥51.62+20lg(F/F0) dBi (polarization switch input, F0=7200 MHz) |
| 8m fixed station – antenna gain s-band rx |
Gr≥40.24+20lg(F/F0) dBi (LNA input, F0=2250 MHz) |
| 8m fixed station – antenna gain s-band tx |
Gt≥39.16+20lg(F/F0) dBi (polarization switch input, F0=2025 MHz) |
| 8m fixed station – antenna gain KA-band tx |
Gt≥62.18+20log(f/f0) dBi (f0=26.25 GHz) |
| 8m fixed station – antenna noise temperature |
X-band ≤85K; S-band ≤128K; Ka-band ≤159K (LNA input, EL≥10°, clear sky) |
| 8m fixed station – g/t x-band |
≥31+20lg(F/F0)dB/K (F0=8350 MHz) |
| 8m fixed station – g/t s-band |
≥18.5+20lg(F/F0)dB/K (F0=2250 MHz) |
| 8m fixed station – g/t KA-band |
≥37.5+20lg(F/F0)dB/K (F0=25 GHz) |
| 8m fixed station – eirp x-band |
≥70+20log(F/F0)dBW (F0=7250 MHz), SSPA=200 W |
| 8m fixed station – eirp s-band |
≥58+20log(F/F0)dBW (F0=2075 MHz), SSPA=100 W |
| 8m fixed station – polarization |
Circular polarization; S/X Tx: LHCP/RHCP time-shared; S/X Rx: LHCP/RHCP simultaneous; Ka Rx: LHCP/RHCP simultaneous |
| 8m fixed station – servo control frequency |
1000 Hz; response ~10 ms; axis control accuracy ~0.01°; control resolution 0.001° |
| 8m fixed station – antenna working range azimuth |
0°~±355° |
| 8m fixed station – antenna working range elevation |
-1°~180° |
| 8m fixed station – antenna working range tilt axis |
0°~±175° |
| 8m fixed station – max slew speed |
Azimuth 20°/s; Elevation 15°/s; Tilt 5°/s |
| 8m fixed station – max acceleration |
Azimuth 10°/s²; Elevation 10°/s² |
| 8m fixed station – pointing accuracy |
0.03°, better than 1/5 half-power beamwidth |
| 8m fixed station – tracking accuracy |
S-band 1/15 beamwidth; X/Ka-band 1/10 beamwidth |
| 8m fixed station – axis angle resolution |
0.001° |
