Product specifications

CDM-710 Broadcast Satellite Modem Revision 10
Summary of Specifications MN/CDM710.IOM
8–6
8.5 70/140 MHz Demodulator
Description Requirements
Frequency Range 52 to 88 and 104 to 176 MHz in 100 Hz steps
Impedance/Connector
50 Ω or optional 75 Ω/BNC Female
Return Loss 15 dB
Input Power, Minimum -58 + 10xLog(Symbol Rate in MHz) dBm,
-58 dBm at 1 Msps, -41.5 dBm at 45 Msps. See Figure 8-2.
AGC Range 45 dB above minimum
Max Composite Level +20 dBc composite to desired up to +10 dBm
Acquisition Range
± 100 kHz programmable in 1 kHz steps
Acquisition Time Typical < 5 seconds, DVB-S and DVB-DSNG
Typical < 10 seconds, DVB-S2 Pilots On.
Adaptive Equalizer Up to 3 dB tilt
BER Performance
See Table 8-2 to Table 8-5
IQ Test Point Accessible from rear panel Alarm connector
8.6 L-Band Demodulator
Description Requirements
Frequency Range 950 MHz to 1950 MHz in 100 Hz steps
Impedance/Connector
50 Ω/Type N Female
Return Loss 10 dB
Input Power, Minimum -58 + 10xLog(Symbol Rate in MHz) dBm,
-58 dBm at 1 Msps, -41.5 dBm at 45 Msps
AGC Range 45 dB above minimum
Max Composite Level +30 dBc composite to desired up to +10 dBm
Acquisition Range
± 100 kHz programmable in 1 kHz steps
Acquisition Time Typical < 5 seconds, DVB-S and DVB-DSNG
Typical < 10 seconds, DVB-S2 Pilots On
Adaptive Equalizer Up to 3 dB tilt
BER Performance
See
Table 8-2 to Table 8-5
IQ Test Point Accessible from rear panel Alarm connector