Comtech EF Data CD-MNLBC4000, Инструкция по установке и эксплуатации

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LBC-4000 L-Band Up/Down Converter System MN/LBC4000.IOM
Specifications Revision 5
2–4
2.1.7.5.2 LBC-4000 L-Band Down Converter IDU Module
Input Frequency Range 950 MHz to 2000 MHz, 1 kHz steps
Output Frequency
• STANDARD: 70 MHz ± 18 MHz
•
OPTIONAL: 140 MHz
±
36 MHz
Input/Output Impedance 50 Ω
Input Return Loss 15 dB minimum
Output Return Loss 20 dB minimum
Input connector Type ‘N’ female
Output connector BNC female
Gain 35 dB nominal at minimum attenuation
Ripple
• ±
.5 dB over any
±
18 MHz for 70 MHz IF units
• ± .5 dB over any ± 36 MHz for 140 MHz IF units
Slope 0.05 dB/MHz
User Attenuation Range
0 to 40 dB, in 0.25 dB steps (STANDARD) or 0.1 dB steps
(OPTIONAL)
Output Power, P1dB +13 dBm minimum
Third Order Intercept +23 dBm minimum
Carrier Spurious -60 dBc
Non-Carrier Spurious -60 dBm
Stability
Over Time ± 1 X 10
-9
/Day
Over Temp ±
1 x 10
-8
32° to 122°F (0° to 50°C)
2.1.8 Rear Panel Features
2.1.8.1 External Reference Connector
•
(1X) Type BNC female ‘J2| EXT REF IN’ connector, used to supply a 5 or
10 MHz (auto-detect) @ ±5 dBm master reference input (50 Ω
impedance) to the entire chassis.