154 FONIX FP35 Hearing Aid Analyzer
Figure 5.7.5—Numerical display of target data
5.7.6 Measuring the Telecoil Response
Telecoil measurements can be performed in the real-ear measurement screens
using any source type available on the analyzer. You must use the optional
Telewand to perform this measurement.
To test the telecoil function in a real-ear measurement:
1. Follow the instructions found in Section 2.5.8 to set up the FP35 Default
Settings Menu for telecoil measurements.
2. Press [F2] from the Opening Screen to enter the Real-ear mode and use
[NEXT] or [BACK] to enter one of the real-ear measurement screens.
3. Press [MENU] to open the local menu.
4. Use [
∨, ∧] to select TELECOIL and use [<, >] to choose ON.
5. Press [EXIT] to close the local menu. The source box at the bottom of the
measurement graph will now indicate TMFS.
6. Plug the Telewand into the earphone jack or the speaker jack (new style rear
panel only) on the back of the FP35 analyzer.
7. Set up the patient for real-ear measurements in the usual way. It is not nec-
essary to level the sound field speaker for this measurement.
8. Set the hearing aid to telecoil mode.
9. Use [F4] to choose the desired source type.
