User guide

Modifying the Test Setup

Inserting Errors

Press the Analysis Results

button twice to switch to

the Results tab.

You can add a single bit error to the data stream by pressing

the Error Add button.

You could also loosen the data

cable and wiggle it carefully.

Watch how the BER changes.

The pattern generator can also be set up

to insert a specified BER in the data

stream. This can, for example, be used

for testing error correction algorithms.

Open the Accumulation

Setup dialog box.

Select aTime of

10 seconds as the

measurement period.

Press OK.

Select the activation

mode Repeat to run

repeated tests.

Select, No Logging,

because we do not

need a measurement

log file now.

Press the PG/ED Setup

button twice to switch

to the error detector setup.

Setting up Error Accumulation

To provide comparable results, you can run tests over a longer time

and collect the measured data:

Press the Start

Accum button to

start accumulating.

Accumulation Results

View the accumulated results:

Switch to the

Accumulated Results.

Here you can view all statistics

measured during the current and

the previous measurement.

To stop the J-BERT from

collecting any more data,

press the Stop Accum

button.