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102 FONIX FP40 Portable Hearing Aid Analyzer
If the FP40 has the OES Option, it is also possible to make a prescription that uses the modified
Zwislocki (MZ) couplers.
5.7.1 Viewing the Target 2-cc screen
Figure 5.7.1 contains a picture of the Target 2-cc screen.
1. Gain graph containing the 2-cc target including the calculated target and modified target if
available.
2. Selected ear.
3. Selected aid type.
4. Selected coupler.
5. Status of unaided response used to make the 2-cc conversion.
6. Fitting rule.
7. Signal source type.
8. Signal source amplitude.
9. Status of RECD.
10. Age of client.
11. Instructions for performing 2-cc target measurements.
Note: Once a measurement is made, the modification box will disappear from the screen.
Figure 5.7.1—Target 2-cc screen