130 FONIX FP35 Hearing Aid Analyzer
EAR—The ear tested. Select LEFT or RIGHT.
AID GROUP—Type of aid being tested. Choose STANDARD, AGC, or ADAPTIVE
(for adaptive AGC circuits). See Section 2.4 for more information.
ASSESSMENT—The transducer used in performing the audiometric measure-
ments. If you have the Audiometer Option, this will activate the selected trans-
ducer. (The FP35 cannot use the TDH transducer to make audiometric measure-
ments.)
SOUND FIELD—The sound field azimuth you are using with the real-ear mea-
surements. We recommend 45º for more repeatable results.
OUTPUT LIMIT—The maximum output of the hearing aid, as read by the probe
microphone, before the analyzer automatically shuts off its speaker. This limit
is designed to protect the hearing of your client from accidental overexposure to
noise while being tested.
NOISE RED (TONE)—The amount of noise reduction used when taking mea-
surements.
REF MIC (SPEAKER)—The status of the reference microphone when making
sound field measurements.
Target Menu
Press [BACK] from the Main Audiogram Entry menu to enter the Target menu.
FIT RULE—The fitting rule used to create the real-ear and coupler targets.
Selections are: NAL-NL1, NAL-RP, DSL WDRC, DSL LIN, POGO, BERGER, 1/3
GAIN, 1/2 GAIN, 2/3 GAIN, and DIRECT. A selection of NAL-NL1 will add sev-
eral menu selections to the menu screen.
AGE—The age of the client. A selection of NONE sets the age to ADULT but
turns of the age display.
COMPRESSION—The type of wideband compression threshold the aid has.
This is selectable in increments of 1 dB, and it is only available with a fitting
rule selection of DSL WDRC or NAL-NL1.
CHANNELS—The number of channels the aid has. This is only available with a
fitting rule selection of NAL-NL1.
AID LIMITING—The type of output limiting the aid has. If the aid has output
limiting, usually WIDEBAND should be selected. If the aid has output limiting,
and if the aid has more than one channel, this can be set to MULTICHAN. If the
aid doesn’t have limiting, set this to NONE. This selection is only available with
a fitting rule selection of NAL-NL1.
