IMT X-Band Transponder
IMT (Ingegneria Marketing Technologies)
ESTRACK-compatible CubeSat X-band transponder for deep space and Earth observation missions, 15W TX, 60 ksps downlink, 2-way Doppler/ranging/Delta-DOR, <1.5U volume, 1200g total mass.
Technical specifications
- Uplink frequency
- 7145-7190 MHz (Cat B), 7145-7235 MHz (Cat A opt)
- Downlink frequency
- 8400-8450 MHz (Cat B), 8400-8500 MHz (Cat A opt)
- TX output power
- 15W
- Downlink symbol rate
- Up to 60 ksps (1 Msps optional)
- Uplink symbol rate
- Up to 4,000 sps
- Modulation
- PCM/PSK/PM
- RX noise figure
- <2 dB
- Turn-around ratio
- 749/880
- Power (standby)
- 7.4W
- Power (receive)
- 12.8W
- Power (RX+TX at 15W)
- 94.4W
- Power supply
- 24-33.6V
- TM/TC interface
- Redundant CAN bus, I2C backup
- Payload data interface
- RS422
- Total volume
- <1.5U
- Total mass
- 1,200 g
- Operating temperature
- -20 to +50 deg C
- Design lifetime
- 3 years
- Network compatibility
- ESTRACK
About
The IMT X-Band Transponder is a CubeSat-compliant deep space and Earth observation communication system using COTS components to minimize cost. Compliant with the ESTRACK ground network, it supports 2-way Doppler, ranging, and Delta-DOR. The system comprises three assemblies: Main (90x96x74 mm, 660g), LNA (94x94x8.6 mm, 115g), and HPA (94x94x44.4 mm, 420g), totaling less than 1.5U and 1,200g. Uplink in 7145-7235 MHz, downlink in 8400-8500 MHz (Category B sub-bands also available). TX output is 15W; downlink symbol rates up to 60 ksps (1 Msps optional). RX noise figure less than 2 dB. Power supply is 24-33.6V. Modulation is PCM/PSK/PM. TM/TC via redundant CAN bus; payload data via RS422. Operating temperature -20 to +50 deg C.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
