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AmpliVox 270 - Threshold Retention Function

AmpliVox 270
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OM020-9 Model 270 Operating Manual Page 11
STORE Saves the displayed combination of frequency, attenuation
and ear as a threshold retention value. Please see Section
3.6 for further details.
3.5.4 TEST MENU
This key enables the selection of the following standard tests. Exit each
test by pressing the TEST MENU key again.
Menu Option Description
STENG. Stenger: Routes tone or speech to both earphones
simultaneously. Use the SIGNAL rotary control to adjust
the Left channel level and the MASK rotary control to
adjust the right. Refer to Appendix 1 for details of the
Stenger test in speech mode.
ABLB Alternate Binaural Loudness Balance: Routes tone to each
earphone alternately. Use the SIGNAL rotary control to
adjust the Left channel level and the MASK rotary control
to adjust the right. Pressing the PRESENT key interrupts
the signal presented.
SISI Short Increment Sensitivity Index: Presents a tone
continuously at the level and frequency displayed.
Pressing the PRESENT key increases the level by the
increment shown on the lower line of the display. Change
this increment by using the UP & DOWN softkeys. Softkey
4 switches between the initial display and a counter that
logs and displays the results of the test as a percentage:
Use Softkey 1 to record a response
Use Softkey 2 to record no response
Use Softkey 3 to clear the results display
Use Softkey 4 to return to the initial SISI display
3.6 Threshold Retention Function
This function records the thresholds for both ears at each frequency
tested (air conduction, bone conduction and ULL). Once a threshold has
been determined press the STORE key. Alternatively use the “Store on 2
of 3” function (see Section 3.5.2). The threshold will be recorded and
displayed as shown below.

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