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
through
.
IQ Test Point
Accessible from rear panel Alarm connector
-70
-60
-50
-40
-30
-20
-10
0
10
1
10
100
Symbol Rate (Msps)
C
ar
ri
er
I
n
p
u
t L
evel
(
d
B
m
)
Maximum Level
Minimum Level
Carrier Input Level (vs) Symbol Rate
Содержание CDM-710
Страница 2: ......
Страница 8: ...This page is intentionally blank ...
Страница 26: ...CDM 710 Broadcast Satellite Modem Revision 11 Preface MN CDM710 IOM xx Notes ...
Страница 64: ...CDM 710 Broadcast Satellite Modem Revision 11 Flash Upgrading MN CDM710 IOM 4 6 Notes ...
Страница 120: ...CDM 710 Broadcast Satellite Modem Revision 11 Front Panel Operation MN CDM710 IOM 5 56 Notes ...
Страница 144: ...CDM 710 Broadcast Satellite Modem Revision 11 Ethernet Management MN CDM710 IOM 6 24 Notes ...
Страница 230: ...CDM 710 Broadcast Satellite Modem Revision 11 Appendix A MN CDM710 IOM A 56 Notes ...
Страница 236: ...CDM 710 Broadcast Satellite Modem Revision 11 Eb No Measurement MN CDM710 IOM B 6 Notes ...
Страница 242: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX ...