Topfield CBC-5150, Руководство пользователя

Страница: 18 / 57

14 Service Search
You should set the
Search Mode
option to
Auto
at the first
service search after installing the digital receiver. The digital
receiver will search all available services with the automatic
search mode within the frequency range from the frequency
of the
Start Frequency
option to the frequency of the
End Fre-
quency
option. Symbol Rate stands for data transfer rate, and
QAM is a form of modulation used in digital broadcasting.
Broadcasting operators send their services in a symbol rate by
a modulation method. Perhaps you do not have to specify the
Symbol Rate
and
QAM Mode
options since they are seldom
changed. However, you should set the
QAM Mode
option to
Auto
for more certainty. You can specify the
Start Frequency
,
End Frequency
and
Symbol Rate
options with the numeric
buttons if you want to change them.
If the digital receiver has failed to find every service you want
in a service search, you should set the
Search Mode
option to
Network
. With this option, the digital receiver will check up
the up-to-date channel information as searching services, but
it takes rather longer time.
To search only one frequency, set the
Search Mode
option to
Manual
and specify your desired frequency at the
Frequency
option with the numeric buttons. In this case, you had better
set the
Network Search
option to
On
.
To start service search, move down to the
Start Search
item,
and press the
OK
button. The digital receiver will start to
search for services and display a list of television and radio
services as they are found. It is common for no channels to be
found until quite late in the process. When the scan is com-
plete, you will see a message telling you how many services
have been found. Press the
OK
button to save the list.
3.2 Resetting to factory settings
The digital receiver maintains the following data:
• Services list