HP 4934A - Page 38

note During a timed measurement you can check the current LOW, MID and HIGH
threshold count by using the DISPLAY key. After checking the counts ensure that the
instrument is set to TIMER again.
14 When the measurement is complete the impulse noise count is in the right
window (the CNTS indicator will be lit). A sign in the right window indicates
a loss of received holding tone (impulse noise with holding tone measurement
only).
NOTE Selecting a new filter during the measurement causes the measurement to stop
running.
2-20 Making Measurements