How to fit Micro Receiver DT20 to Cochlear™ Baha® BP100 and BP 110 Power
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2
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❶
❷
Required parts
1. Micro Receiver DT20
2. Programme DT20
3. Cochlear™ Baha®
Before fitting Micro Receiver DT20 to Cochlear Baha® BP100 or BP110
Please ensure that each step below is carefully followed before making any attempt to connect Micro Receiver
DT20 to the Sound processor.
1. Preparing the Micro Receiver DT20
In this step you are asked to use the Step-By-Step guide in the Programmer DT20 in order to configure the
Micro Receiver DT20 for an optimal usage with Phonak iCom.
a. Turn on the Programmer DT20 and attach the Micro Receiver DT20 into its Euro-plug.
b. Select the Step-By Step menu .
c. Select whether the DT20 is fitted to the right
or to the left ear .
d. Skip the Scan instruction animation and scroll to the next step by pressing .
e. Check that the Comfort Digisystem Michrophone is turned off.
On Programmer DT20 select and press .
f. In this step the radio environment will
automatically be scanned by the DT20
Programmer´s built-in spectrum analyser
and the value of the radio interferences
will be presented on the screen ❶.
Ensure that there are no radio interferences
in your radio environment, before you go to the next step.
Green colour indicates acceptable radio interference level.
If any radio interferences higher than -91 dBm are indicated in your radio environment, you need to find the interference sources and
eliminate them.
g. There is no need to scan Cochlear Baha 100/110, due to
low radio interference from these devices.
Press to go to the next step.
h. In this step ❷select and
press .
i. Select and press .
j. Select and press .
k. Turn on your Comfort Digisystem Microphone
and configure it with an appropriate radio channel.
On Programmer DT20 select and press .
l. Press DT20´s Push button and hold it down for
❶
❷
more than 2 sec in order to set Micro Receiver
DT20 in pairing mode.
You will then automatically be guided
to the next step.
m. Send the pairing information from Comfort
Digisystem Microphone to Micro Receiver DT20.
n. Depending on whether the pairing procedure
has been successful ❶ or not ❷, one of
the symbols shown in the pictures to the
right will appear and you will be guided to:
i. The Step o if the pairing has been successful.
ii. The Step l if the pairing has not been successful.
Press to go to the next step.
o. Press to skip the Volume Adjustment Animation.
p. Adjust the volume of R-mode = 0 dB .
Select and press .
You will be presented a
Press to go to the next step.
You will now be guided to the Main menu.
q. In the Main Menu check that all settings are
correctly selected.
Make sure that volume of R+M = Off.
Choose if “Pairing by push button” may be
enabled or disabled .
Select High sensitivity .
r. The settings can be transferred and saved
in any computer via USB.
Connect Programmer DT20 to the computer.
Select and press .
chequered flag.
2. Preparing the Sound processor
a. Ensure that the sound processor is configured for DAI (Direct Audio Input) program. This program allows the user to
hear only the audio signal from DAI. In other programs the audio signal from the internal microphone and the DAI will
be mixed.
b. Cochlear Baha® BP100 or BP110 can be configured for Mic relative DAI setting.
The audio signal from DAI will be increased by +6 dB compared to the audio signal from the sound processor´s
internal microphone.
This feature can be enabled by the responsible hearing care professional at the hearing centre.
3. Fitting Micro Receiver DT20 to Cochlear Baha® BP100 or BP110
a. Turn on the Sound processor by pressing and holding down the middle button on the sound processor in approx. 3
seconds.
c. Select a normal listening program and conduct a listening test in quiet, at a Speaker-to-Listener Distance of 1 metre.
If needed, manually adjust the volume control on the sound processor in order to obtain an optimal volume level.
d. Select the DAI program on the sound processor and attach Micro Receiver DT20 into the sound processor´s DAI port.
Micro Receiver DT20 will automatically be detected.
Conduct a listening test in quiet, at a Speaker-to-Listener Distance of several metres this time.
e. The user´s speech recognition performance should be almost the same in the both cases.
If not, use Programme DT20 to optimize the output level of Micro Receiver DT20 until almost the same performance
is obtained.
Note: The DAI program is recommended for use in noise. The other programs can be selected for use in the quiet.
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