AmpliVox 260 - 3.4.3 Description of Function of Other Keys

Page 10 OM023-4 Amplivox 260 Operating Manual
Store on 2 of 3?: Use the NO and YES keys to activate
automatic storage of a threshold if the
responses made to two out of three test signals
are at the same hearing level
Warble to phones?: Use the NO and YES keys to send frequency-
modulated tones to the headphones
Set freefield level?: This option provides access to the freefield
calibration function; refer to Appendix 2 for
details
Default level: Adjust the default tone presentation level
(between 20dBHL and 40dBHL) using the
SIGNAL  keys
2.5dB step size?: Use the NO and YES keys to disable or enable
the 2.5dB step size; otherwise step size is 5dB
External talkover?: Select NO to use the internal microphone and
YES to use the MIC 1 input
Select printer: Use the SIGNAL  keys to select either the
Able AP1300 or the Martel MCP8830 printer
Air Conduction ULL: Use the NO and YES keys to disable or enable
the uncomfortable loudness level (ULL)
function; if enabled, the thresholds recorded will
be stored, printed & transferred as ULL results
3.4.3 Description of Function of Other Keys
PULSE This enables the pulse tone present function when the
PRESENT key is operated; the indicator above the key
illuminates green
MASK This switches on masking at 30dBHL; narrow band noise
for pure tones, and speech-weighted noise for speech;
the indicator above the key illuminates green
CONSTANT This switches tone or speech signal on continuously; the
indicator above the key illuminates green; it may be
interrupted by pressing the PRESENT key