Product specifications

CDM-710 Broadcast Satellite Modem Revision 11
Introduction MN/CDM710.IOM
1–17
Figure 1-8. Demodulator Input Level
1.4.3.2 CDM-710L (L-Band) Demodulator
Description Requirements
Frequency Range 950 MHz to 2150 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 1-2 through Ta
ble 1-5.
IQ Test Point Accessible from rear panel Alarm connector
-70
-60
-50
-40
-30
-20
-10
0
10
1 10 100
Symbol Rate (Msps)
Carrier Input Level (dBm)
Maximum Level
Minimum Level
Carrier Input Level (vs) Symbol Rate