User manual
Micro Receiver DT20
9
11) Technical data Micro Receiver DT20
Radio transmission: SST - SecureStream
Technology
Frequency range: 904 - 927 MHz
Range: Approx. 100 feet (30 m)
Dimensions: 0.38 x 0.44 x 0.84 inches
(9.7 x 11.2 x 21.3 mm)
Weight: 0.05 oz (1.1 g)
The weights, dimensions, capacities, performance ratings and other data in
Comfort Audio’s brochures, prospectus, circulars, advertisements, price lists and
instructions sheets are mentioned only as general information. They are only ap-
proximate and shall not bind Comfort Audio.
10) Trouble shooting
The receiver does not start
1. Check that the correct listening program is selected
on the hearing instrument.
2. Make sure the Micro Receiver DT20 is correctly con-
nected to the hearing instrument’s audio shoe. Also
check the connection between the audio shoe and
the hearing instrument.
3. Make sure all connecting surfaces are clean.
4. Check/replace the hearing instrument’s battery.
5. Remember to press the push-button briefly to
switch the DT20 on.
Poor speech intelligibility
The distance between the transmitter and the receiver
may be too long. The range is around 100 feet
(30 meters).
The distance between the microphone and the talking
person may also be too long; move the microphone
closer to the talking person.
Try changing the channel/environment.
Poor range and interference
In some environments, such as in buildings with a lot of
concrete, iron or sheer metal structures, the range may
be reduced.
There may also be electronic equipment nearby causing
interference. Change the channel.
No sound
Check that the transmitter and the receiver are set to
the same channel.
Loud hissing noise
Check that the Comfort Digisystem units you are using
are paired together.
If
Auto sleep
is enabled, the Micro Receiver DT20 goes
into sleep mode if there is no radio signal. But if another
radio signal (with the same frequency you are using)
is present, the Micro Receiver DT20 might start again
automatically. This could cause a loud hissing noise and
that’s why
Auto sleep
should be used with caution.