Safran CORTEX CRT Quantum - Page 60

COMMAND RANGING & TELEMETRY UNIT CORTEX
CRT QUANTUM USER'S MANUAL
Ref. DTU 100042
Is.Rev. 5.17
Date: Dec. 03, 2021Sept.
30, 2021
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Page 35
1.6.10. Optional RF Stage
Available only with the option Embedded Frequency Converter
1.6.10.1.Down Convertor Specifications
 RF input stages 3
 RF input ports 1 per input stage (Nominal)
 Input frequency 930 to 2400 MHz
 Input impedance 50 Ω
 Output frequency 70MHz +/- 20MHz
 Output impedance 50 Ω
 Return loss > 15 dB (both Input & Output)
 Input level From -20dBm to -105dBm
 Maximum total power level < -20dBm (or No=-110dBm/Hz for 1GHz noise limited bandwidth)
 Independent spurious level < -90 dBm signal dependent at max gain in output bandwith
 Gain 2 modes available:
- Automatic control mode
- Manual mode:
from +10dB to +25dB with Model S105576
from +15dB to +30dB with Model S108984
 Noise Figure Typical 12dB @ maximum gain with Model S105576
Typical 10dB @ maximum gain with Model S108984
1.6.10.2.Up Convertor Specifications
 RF output stages 2
 RF output ports 1 per input stage (Nominal)
 Output frequency 950 to 2400 MHz
 Output impedance 50 Ω
 Input frequency 70MHz +/- 20MHz
 Input impedance 50 Ω
 Return loss > 15 dB (both Input & Output)
 Mute (ON/OFF) > 60dB
 Output level from +5dBm to -80dBm
 Dependent spurious level < -60 dBc in output bandwidth @Pout > -20dBm
 Noise density < -112 dBm/Hz