Comtech EF Data LBC-4000 - Manual (Page 24)

LBC-4000 L-Band Up/Down Converter System Revision 4
Introduction MN/LBC4000.IOM
1–6
1.4.5 LBC-4000 L-Band Downconverter IDU
Input Frequency Range 950 MHz to 2000 MHz, 1 kHz steps
Output Frequency 70 MHz ±18 MHz (140 MHz ±36 MHz optional)
Input/Output Impedance 50Ω
Input Return Loss 15 dB minimum
Output Return Loss 20 dB minimum
Input connector Type ‘N’ female
Output connector Type ‘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 (0.1 dB 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 32º to 122ºF (0º to 50ºC)