XMOD (X-band Multi-mode High Speed Modulator)
| Registration date | 5/15/2014 |
|---|---|
| JAXA development group | Research Unit I, Research and Development Directorate |
| View diagram | See Attachment 1 |
| Environmental resistance | See Attachment 2 |
| Patent number (publication number) |
N/A |
| Reference | See Attachment 3 |
| Satellite and launch date | To be supplied after launch |
| Note | N/A |
Manufacturer
Mitsubishi Electric Corpration
Kamakura-shi, Kanagawa, Japan
https://www.mitsubishielectric.com/en/worldwide/index.html
Features
- This component provides the three communication modes, which are selectable by commands.
800 Mbps (16QAM), 400 Mbps (QPSK) and 200 Mbps (QPSK) - Internal redundant configuration.
- Demodulation is possible by CORTEX HDR XXL.
Applications
X-band modulator on earth exploration satellites.
Specifications
| Property | Specification | Development result |
|---|---|---|
| Output frequency | X-band, Select one frequency in the range of 8025 to 8400 MHz | same as on the left |
| Modulation | 16QAM, QPSK | same as on the left |
| Data rate | 800 Mbps (16QAM) 400 Mbps (QPSK) 200 Mbps (QPSK) (Selectable by command) |
same as on the left |
| Occupied frequency bandwidth | 16QAM 800 Mbps : 275 MHz or less QPSK 400 Mbps : 275 MHz or less QPSK 200 Mbps : 150 MHz or less |
16QAM 800 Mbps : 239 MHz or less QPSK 400 Mbps : 239 MHz or less QPSK 200 Mbps : 122 MHz or less |
| RF output power | +5 dBm ±1 dB | +5.0 dBm ±0.6 dB or less |
| Carrier suppression | 16QAM 800 Mbps : -45 dBc or less QPSK 400 Mbps : -45 dBc or less QPSK 200 Mbps : -42 dBc or less |
16QAM 800 Mbps : -45 dBc or less QPSK 400 Mbps : -45 dBc or less QPSK 200 Mbps : -43 dBc or less |
| Operating voltage | +30 to ±53 VDC | same as on the left |
| Power consumption | 25.5 W or less (internal redundancy) |
19.86 W max (internal redundancy) |
| Dimensions (max)(W×D×H) | 277 mm × 106 mm × 186 mm (internal redundancy) |
259.1 mm × 97.4 mm × 176.0 mm (internal redundancy) |
| Mass | 3.36 kg or less (internal redundancy) |
2.83 kg (internal redundancy) |
| Operating temperature range |
-20 to +55 °C | same as on the left |
| Interface | Data : Wizard Link (TLK2711) Telemetry/Telecommand : ELA-422 RF : Coaxial |
same as on the left |
