System Performance; System Gain; Equipment Background Ber (Residual Ber); System Signature - Nera Evolution Series Technical Description

5.4.

System Performance

5.4.1.

System Gain

For RF-Coupler loss see chapter 5.5.2.
System Capacity /
Frequency band: [GHz]
4xE1@7MHz (QPSK)
8xE1@7MHz (16State)
8xE1@14MHz (QPSK)
16xE1@14MHz (16State)
16xE1@28MHz (QPSK)
20xE1@14MHz (16State)
40xE1@28MHz (16State)
50xE1@28MHz (32State)
75xE1@28MHz (128State)
5.4.2.

Equipment background BER (Residual BER)

Typical residual BER is ≤ 10
5.4.3.

System Signature

The equipment includes an Adaptive Time Domain Equaliser (ATDE). The system signature is specified
below for 6.3 ns delay. The limits are valid for both minimum and non-minimum phase.
Channel Bandwidth
Max. notch depth, minimum and
non-minimum phase [dB]
Signature bandwidth [MHz]
Signature factor, typical value
Dispersive Fading Margin
(Bellcore), typical value [dB]
32
Typical values @ BER 10
L6 U6 7
121 121 120
113 113 112
117.5 117.5 116.5
109.5 109.5 108.5
115 115 114
108.5 108.5 107.5
105.5 105 104
103.5 103 102
96 96 95
Table 5-14 System gain
-14
.
28 MHz
24
28
1.2
52
Table 5-15 Typical signature values
Evolution Series - XPAND
-6
- ref point C'C [dB]
8 11 13/15
120 118.5 115
112 110.5 107
116.5 115 111.5
108.5 107 103.5
114 112.5 109
107.5 106 102.5
104 102.5 99
102 100.5 97
95 93.5 88
14 MHz
24
14
TBD
TBD
18 23 26
111 111 110
103 103 102
107.5 107.5 106.5
99.5 99.5 98.5
105 105 104
98.5 98.5 97.5
95.5 95.5 94
93 93 92
86 86 85
7 MHz
24
7
TBD
TBD
NGP\00329 Rev. C 23-06-2006
32 38
109 107
100 99
104.5 103.5
96.5 95.5
102 101
96 94.5
92.5 91.5
90.5 89.5
83 82