Comtec CDM-840 - BER (Bit Error Rate); BER Monitor Functions; Regulatory Compliance

CDM-840 Remote Router MN-CDM840
Introduction Revision 3
1–14
1.4.5 BER (Bit Error Rate)
VersaFEC CODEC BER
BPSK
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
For BER=10
-x
Rate – Guaranteed Eb/No (typical value in parentheses)
BER=10
-5
BER=10
-8
Rate 0.488
2.4 dB (2.1 dB)
2.7 dB (2.4 dB)
VersaFEC CODEC BER
QPSK
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
BER=10
-5
BER=10
-8
Rate 0.533 QPSK
2.3 dB (2.0 dB)
2.5 dB (2.2 dB)
Rate 0.631 QPSK
2.8 dB (2.5 dB)
3.0 dB (2.7 dB)
Rate 0.706 QPSK
3.3 dB (3.0 dB)
3.7 dB (3.4 dB)
Rate 0.803 QPSK
3.8 dB (3.5 dB)
4.1 dB (3.8 dB)
VersaFEC CODEC BER
8QAM
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
BER=10
-5
BER=10
-8
Rate 0.642 8QAM
4.6 dB (4.3 dB)
4.9 dB (4.6 dB)
Rate 0.711 8QAM
5.2 dB (4.9 dB)
5.5 dB (5.2 dB)
Rate 0.780 8QAM
5.6 dB (5.3 dB)
6.0 dB (5.7 dB)
VersaFEC CODEC BER
16QAM
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
BER=10
-5
BER=10
-8
Rate 0.731 16QAM
6.4 dB (6.1 dB)
6.6 dB (6.3 dB)
Rate 0.780 16QAM
7.0 dB (6.7 dB)
7.3 dB (7.0 dB)
Rate 0.829 16QAM
7.5 dB (7.2 dB)
7.8 dB (7.5 dB)
Rate 0.853 16QAM
8.0 dB (7.7 dB)
8.3 dB (8.0 dB)
1.4.5.1 BER Monitor Functions
Parameter
Specifications
Eb/No Estimate
3 to 12 dB with ± 0.5 dB accuracy
Corrected Bit Error Rate
1E-3 to 1E-9
Frequency Offset
±32 kHz range,100 Hz resolution
Signal Strength Indicator
0 to 60 dB range relative to maximum gain
1.4.6 Regulatory Compliance
Entity Description
“CE” as follows:
• EN 30489-1
• EN 55022 Class B (Emissions)
• EN 55024 (Immunity)
•
EN 60950 (Safety)
FCC FCC Part 15 Subpart B
RoHS Compliance Yes