Integrated TT&C and Data Transmission Ground System
Emposat Co., Ltd.
A family of integrated telemetry, tracking, command (TT&C) and data-transmission ground stations — from mobile/portable units to 4.5m, 8m and 12m fixed antenna systems — for satellite and launch-vehicle tracking, telemetry, telecommand and high-rate data reception.
Typed specifications3 values
Discloses 1 of 13 fields engineers filter by in this category (category median 2).
- Antenna diameter
- 12 m product page 4.5 m | 8 m
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier70 lines, in the manufacturer's own wording
- 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°
About
An integrated TT&C and data-transmission ground system family offering mechanically optimized full-sky-coverage antenna structures, automated intelligent monitoring of the whole system, and multi-site network scheduling/management. The line spans several configurations: (1) a mobile ground system with ‘one-key’ deploy/stow, high mobility and customizable mounting, including a 1.8m vehicle-mounted station and a 6.2m mobile satellite TT&C station built as a single ‘one station, one vehicle’ unit — an S/X dual-band TT&C set plus communications, power and HVAC support equipment integrated into a 40-foot standard container body suitable for rail/road transport, capable of simultaneous multi-band operation; (2) a portable ground system that assembles/disassembles in 30 minutes, is ultra-portable and low-power, used for satellite/rocket mobile emergency TT&C, low-speed remote-sensing data reception, and high-speed command uplink; (3) a 12m X-band satellite TT&C station using mature, advanced, reliable technology, comprising X-band TT&C equipment with communications, power and HVAC support, covering uplink 7145-7250MHz, telemetry 8.025-8.4GHz and data transmission 7.75-9.0GHz, with 0.5mm/0.3mm main/sub-reflector surface accuracy, G/T ≥35dB/K, EIRP ≥74.4dBW, multiple TT&C modulation schemes, sub-3s to sub-28s acquisition times, MTBF ≥250h, 10-year service life; (4) a 4.5m S/X/Ka-band satellite TT&C station for LEO satellite TT&C, payload data reception and feeder-link transceiving across S (2025-2120/2200-2300MHz), X (7100-7300/7700-9000MHz) and Ka (27.5-30/17.7-20.2GHz) bands, with Ka G/T ≥29dB/K, X G/T ≥26dB/K, Ka EIRP ≥71dBW, X EIRP ≥58dBW, time-shared multi-band TT&C, standard and non-coherent spread-spectrum TT&C support, simultaneous Ka feeder/telemetry reception, MTBF ≥600h, ≥10-year life, plus turnkey ground-station civil works services; and (5) an 8m S/X/Ka-band fixed station comprising seven subsystems (antenna/servo-feed, channel, baseband, station-control, data storage/forwarding, test/calibration, and support) delivering spacecraft and rocket target acquisition/tracking, telemetry/telecommand, data reception, station control, storage/forwarding, unified time-frequency, calibration and security functions — supporting standard and non-coherent spread-spectrum TT&C, 4-target CDMA TT&C, S-band autotrack guiding X/Ka, program and monopulse autotrack modes, VCM demodulation per DVB-S2, XPIC cross-polarization interference cancellation, ≥1.0GHz IF bandwidth, ≥2Gbps per-channel recording with ≥200TB storage, NTP/PTP/1PPS time service, and rocket telemetry (箭遥) reception with polarization combining; antenna weight ≤15000kg, MTBF ≥1000h, MTTR ≤0.5h, ≥15-year service life, operating temperature -40°C to +60°C outdoor, wind-resistant to level 8 (precision) / level 12 (survival), and three-phase 380V/220V AC power with ≥75kW power consumption.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.