Test the − User threshold
1Move the cursor to the field to the right of Pod 1. Type –6.00, then use the left and
right cursor control keys to highlight V. Press the Select key.
2On the function generator front panel, enter −5.718 V ±1 mV DC offset. Use the
multimeter to verify the voltage.
The activity indicators for pod 1 should show all data channels and the J-clock channel at a
logic high.
3Using the Modify down arrow on the function generator, decrease offset voltage in
1-mV increments until all activity indicators for pod 1 show the channels at a logic
low. Record the function generator voltage in the performance test record.
4Using the Modify up arrow on the function generator, increase offset voltage in
1-mV increments until all activity indicators show the channels at a logic high.
Record the function generator voltage in the performance test record.
Testing Performance
To test the threshold accuracy
3–13