Safran CORTEX CRT Quantum - Page 59

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 34
1.6.9.2. Reference Frequency
1.6.9.2.1. External Reference
 Input port 2 ports. Programmable auto-selection
 Frequency 5, 10 or 100 MHz sine or square
 Acquisition range > 5 kHz for 100 MHz, > 500 Hz for 10 MHz, > 250 Hz for 5 MHz
 Impedance 50 Ω
 Level 0.5 to 5 Vpp
DC max. = ± 4 V
1.6.9.2.2. Internal Reference
 Frequency 10 MHz
 Frequency stability ≤ ± 5 ppm ageing first year
 ≤ ± 2 ppm ageing following years
 ≤ ± 15 ppm vs temperature variations (10° to 40°)
 Frequency adjustment No (factory configured)