Bernafon BEBTESP Users Guide

Bernafon Radio Model - Quick Installation Guide Radio Model

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Name: Bernafon BTE SP

The Bernafon BTE SP radio model contains two radio transceivers running at 3.84 MHz and 2.4 GHz and both implemented on a single hardware platform.

The radio model is implemented in an engine module mounted on the main PCB with connections to the antennas, the microphones, the speaker and the
battery terminals.

The 3.84 MHz radio is a low power, short range, inductive radio transceiver working at a single channel at 3.84 MHz using MSK modulation with 320 kbit/s
data rate and connected to a small coil antenna. The 2.4 GHz radio is a Bluetooth Low Energy (BLE) transceiver using GFSK modulation with 1 Mbit/s data
rate also capable of proprietary receiver modes with higher data rates and connected to a short PCB antenna.

Bernafon Radio Model - Quick Installation Guide

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Radio Model Name: Bernafon BTE SP

Below the main flex PCB of the Bernafon BTE SP radio model with the most important electrical and electro-mechanical components can be seen:

Bernafon BTE SP Radio Model – Main PCB – Top side

The most important part of the radio model is the Engine Module mounted on the main flex PCB, which connects it to both the EEPROM memory and all external
connections: On the top side these are the microphones, the battery terminals and the push button. The telecoil is also used for wireless battery charging.

The Bernafon BTE SP radio model requires only a single cell rechargeable battery and an external speaker (also incl. the wire antenna for the Bluetooth
radio part) to be attached and plastic shells, defining the industrial design of a hearing aid end product and holding everything together, in order to be
operational.