Anritsu BERTWave MP2100B, Operation Manual, Page: 157 / 382

5.7 Inserting Bit Error
5-25
5
Generating Pulse Signal
5.7 Inserting Bit Error
Insert a bit error when confirming whether to detect the bit error at the
ED. Bit errors can be inserted either by inserting bits one at a time using
screen operation or by inserting a fixed rate to the bit string.
Inserting bit errors one bit at a time using screen operation
1. Touch the button under Error Addition and set to [Single].
2. Touch the Error Addition button and set the button display to [On].
3. Touch [Insert Error], and then 1 bit error is inserted.
When inserting the bit error, the indicator on the right side of [Insert
Error] lights green.
Inserting fixed proportion of bit errors
1. Touch the button under Error Addition to set to [Repeat].
2. Touch the Rate button. Select the bite error rate from the following
list:
[1E–2]:
10
–2
[1E–8]: 10
–8
[1E–3]: 10
–3
[1E–9]: 10
–9
[1E–4]: 10
–4
[1E–10]: 10
–10
[1E–5]: 10
–5
[1E–11]: 10
–11
[1E–6]: 10
–6
[1E–12]: 10
–12
[1E–7]: 10
–7
3. Set Error Addition to [On].
To stop bit error insertion, set Error Addition to [Off].
The average time interval for generating bit errors depends on the
Rate and Bit Rate as shown in the following table.
Table 5.7-1 Average Time Interval for Generating Bit Errors
Rate
Bit Rate (kbit/s)
155520 622080 1250000 2488320 4250000 10000000
1E–4 64.3  s 16.1  s 8  s 4.02  s 2.35  s 1  s
1E–6 6.43 ms 1.61 ms 800  s 402  s 235  s 100  s
1E–8 643 ms 161 ms 80 ms 40.2 ms 23.5 ms 10 ms
1E–10 64.3 s 16.1 s 8 s 4.02 s 2.35 s 1 s
1E–12 6430 s 1608 s 800 s 402 s 235 s 100 s