Safran CORTEX CRT Quantum User Manual page 55

Satellite Commanding (Low Bandwidth Mode)
1.6.5.

Supported commands

Supported protocols

Modulation

PCM coding

Convolutional coding

Bit rate

BPSK SCF

FSK tone frequency (0/1)

Execute tone frequency

Pseudo-earth tone frequency

SCF and BR stability

Execute & pseudo-earth pulses Programmable duration (10 µs to 10 000 seconds in 10-µs step)

Idle pattern

Preamble length

Pause duration

Synchronized TC protocol

Local TC capability
© Safran Data Systems
COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
Clear or Scrambled TC message transmission
High-level TC requests (see Annex 5)
Wait and verify with time-out & retry instruction
Pause instruction, Grouped instructions
TC message transmission at programmed time
Last radiation time request
Idle pattern generation
Satellite-specific protocols (see Annex 5)
CCSDS COP-1
FSK, no blanking
FSK + half-bit blanking. Duty cycle: 50/50 (default setting)
BPSK, BPSK+AM
BPSK SQUARE
Satellite-specific modes
(contact SAFRAN DATA SYSTEMS for more information)
BP-L/M/S, NRZ-L/M/S, RZ
No
10 to 10 000 bps, 7 to 10000 bps with PACK-EXT License
100 Hz to 125 kHz
100 Hz to 100 kHz
100 Hz to 100 kHz
100 Hz to 100 kHz
As per the reference clock (external or internal)
Programmable period (10 µs to 10 000 seconds in 10-µs step)
Programmable number of pulses (1 to 65536)
Programmable length (1 to 16 bits) and contents
24
0 to 2 bits
10 µs to 10 000 seconds in 10-µs steps
S/W license. PCM & FMRT modes. High-level commanding interface.
Pulses monitoring
MS ACCESS database. Customized databases on request.
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It cannot be duplicated or distributed without expressed written consent.
Ref. DTU 100042
Is.Rev. 5.17
Date: Dec. 03, 2021Sept.
30, 2021
Page 30