FONIX® FP35 Touch - Frye Electronics

Coupler Measurements 87
FP35 software setup
Follow these instructions to configure the FP35 for telecoil measurements in the
Coupler Multicurve screen.
1. Follow the instructions found in Section 2.5.8 to set up the FP35 Default
Settings Menu for telecoil measurements.
2. Press F3 from the Opening Screen to enter the Coupler Multicurve screen.
3. Press [MENU] to open the local menu.
4. Use [q, p] to select TELECOIL and use [t, u] 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. Follow the instructions in the Telecoil Board Setup or Telewand Setup sections
below, depending upon the device you are using for your telecoil measurements.
Telecoil Board Setup
Follow these instructions for setting up the hearing aid and the FP35 analyzer for
telecoil measurements using an external telecoil board.
1. Plug the telecoil board into the earphone jack or the speaker jack (new style rear
panel only) on the back of the FP35 analyzer.
2. Attach the hearing aid to a coupler in the usual way and set the hearing aid to
telecoil mode.
3. Use [p] to select the desired mA/M strength for the telecoil test. This can range
from 1 to 100 mA/M.
4. Use [F4] to choose COMP, DIG SPCH or FAST for the signal type.
5. Press [START/STOP] to begin the measurement. This will show the output of
the telecoil response.
6. Orient the hearing aid at the center of the telecoil board for maximum output.
Normally this will be when the hearing aid is positioned vertically. See Figure
3.8.8A.
7. Press [START/STOP] to stop the measurement, or continue to test, as desired.
Adjust the source type with [F4] and the strength of the signal with [q, p].