Comtech EF Data LBC-4000, Инструкция по установке и эксплуатации

Страница: 25 / 148

LBC-4000 L-Band Up/Down Converter System
Revision 6
Specifications 2–3 MN-LBC-4000
2.1.7.5 Modular Design
LBC-4000: Two IDU Module bays (‘CONV A’ and ‘CONV B’) are located behind the drop-down
front panel.
LBC-4000-ST: One internal ‘CONV A’ IDU Module bay.
2.1.7.5.1 L-Band Up Converter IDU Module
Input Frequency
Standard: 70 MHz ± 18 MHz
Optional: 140 MHz
±
36 MHz
Output Frequency
950 MHz to 2000 MHz, 1 kHz steps
Optional: 950 to 2150 MHz, 1 kHz steps
Input/Output Impedance 50Ω
Input Return Loss 18 dB minimum
Output Return Loss 15 dB minimum
Input connector BNC female
Output connector Type ‘N’ female
Gain 25 dB
±
1 dB nominal at minimum attenuation
Ripple
± .5 dB over any ± 18 MHz for standard 70 MHz IF units
± .5 dB over any ± 36 MHz for optional 140 MHz IF units
Slope 0.05 dB/MHz
User Attenuation Range 0 to 50 dB, in 0.25 dB steps (Standard) or 0.1 dB steps (Optional)
Input Power Level Up to
±
10 dBm maximum
Output Power, P1dB +10 dBm minimum
Third Order Intercept +20 dBm minimum
Carrier Spurious -60 dBc
Non-Carrier Spurious -75 dBm
Transmit Phase Noise Exceeds MIL-STD-188-164A
Stability
Over Time
±
1 X 10
-9
/Day
Over Temp
±
1 x 10
-8
32 to 122°F (0 to 50°C)