Page 8 OM006-12 Model 116 Operating Manual
is already selected press again to store the
displayed signal value as a threshold (see
Section 3.5.1)
SIGNAL Press the keys to decrease or increase
the level of the tone presented in 5dB steps; to
scroll through the range keep the key pressed
PULSE/CONSTANT Press this key once to enable the pulse tone
present function when the PRESENT key is
operated (“Pulse” is displayed); press the key
again to enable constant tone presentation (the
indicator above the key illuminates green) and
use the PRESENT key to interrupt the tone;
press the key once again to return to default
+20dB This enables tone levels to be presented with
up to 20dB higher output; press the key and
then use SIGNAL to access the extra 20dB
in 5dB steps; an indicator above the key
illuminates green to show that the function is
active Note: this function will not operate if
constant tone presentation has been
enabled
WARBLE When selected, the instrument presents a
warble tone a green indicator above the key is
used to show that the function is active; this
feature may be used in conjunction with the
PULSE/CONSTANT key
FREQUENCY Press the key to select a lower frequency
and the key to select a higher frequency
TALK OVER Hold this key to interrupt the test and route the
operator’s voice from the front panel
microphone to the headset; the level is
adjusted with the SIGNAL keys; when the
key is released the output levels return to their
default values
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