Ber (Bit Error Rate); Ber Monitor Functions; Regulatory Compliance - Comtec CDM-840 Installation And Operation Manual

CDM-840 Remote Router
Introduction
1.4.5

BER (Bit Error Rate)

VersaFEC CODEC BER
For BER=10
BPSK
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
VersaFEC CODEC BER
QPSK
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
VersaFEC CODEC BER
8QAM
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
VersaFEC CODEC BER
16QAM
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
1.4.5.1

BER Monitor Functions

Parameter
Eb/No Estimate
Corrected Bit Error Rate
Frequency Offset
Signal Strength Indicator
1.4.6

Regulatory Compliance

Entity
"CE" as follows:
FCC
RoHS Compliance
-x
Rate – Guaranteed Eb/No (typical value in parentheses)
Rate 0.488
BER=10 2.4 dB (2.1 dB)
-5
BER=10 2.7 dB (2.4 dB)
-8
Rate 0.533 QPSK
BER=10 2.3 dB (2.0 dB)
-5
BER=10 2.5 dB (2.2 dB)
-8
Rate 0.642 8QAM
BER=10 4.6 dB (4.3 dB)
-5
BER=10 4.9 dB (4.6 dB)
-8
Rate 0.731 16QAM
BER=10 6.4 dB (6.1 dB)
-5
BER=10 6.6 dB (6.3 dB)
-8
Specifications
3 to 12 dB with ± 0.5 dB accuracy
1E-3 to 1E-9
±32 kHz range,100 Hz resolution
0 to 60 dB range relative to maximum gain
Description
• EN 30489-1
• EN 55022 Class B (Emissions)
• EN 55024 (Immunity)
• EN 60950 (Safety)
FCC Part 15 Subpart B
Yes
Rate 0.631 QPSK
2.8 dB (2.5 dB)
3.0 dB (2.7 dB)
Rate 0.711 8QAM
5.2 dB (4.9 dB)
5.5 dB (5.2 dB)
Rate 0.780 16QAM Rate 0.829 16QAM
7.0 dB (6.7 dB)
7.3 dB (7.0 dB)
1–14
MN-CDM840
Revision 3
Rate 0.706 QPSK Rate 0.803 QPSK
3.3 dB (3.0 dB) 3.8 dB (3.5 dB)
3.7 dB (3.4 dB) 4.1 dB (3.8 dB)
Rate 0.780 8QAM
5.6 dB (5.3 dB)
6.0 dB (5.7 dB)
Rate 0.853 16QAM
7.5 dB (7.2 dB) 8.0 dB (7.7 dB)
7.8 dB (7.5 dB) 8.3 dB (8.0 dB)