50
FM Balance
Fitting verifi cation
• Measure the hearing aid response at 65dB SPL through the coupler microphone (Curve 1).
• The hearing aid is taken out of the box and put aside, still connected to the coupler.
• The receiver is attached to the hearing aid and turned on.
• The transmitter microphone is then placed on the same reference position in the box and the measurement is repeated at 65dB SPL (Curve 2).
• The two measurements are compared to see if the levels are similar. In case that the FM output is different than the aid, the receiver gain should
be adjusted accordingly. The process is repeated until the two curves more or less overlap.
• Finally, the FM system is measured again at 80dB SPL (Curve 3). Because of transmitter compression, you will expect to see an FM advantage
from 0 to 10dB. (Curve 3).
Curve 1
Curve 2
Curve 3
Summary of Contents for Amigo R1
Page 1: ...Amigo Fitting Guide...
Page 8: ...8 Fitting steps Fitting steps...
Page 10: ...10 Transmitter Transmitter...
Page 22: ...22 Receiver Programming the Receiver...
Page 37: ...37...
Page 38: ...38 FM ChannelWizard Using the FM Channel Wizard...
Page 44: ...44 Practical use Practical use...
Page 48: ...48 Fitting verification Fitting verification...
Page 51: ...51...
Page 52: ...52 Connectivity Connectivity with hearing aids...
Page 56: ...56 Accessories Accessories...
Page 59: ...59...