Thrane&Thrane TT-3080A, Руководство пользователя, Страница: 62 / 124

Getting started Getting started Getting started Getting started NCS/LES connectivity NCS/LES connectivity NCS/LES connectivity NCS/LES connectivity
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4.3 NCS/LES connectivity
After setting up the antenna, turn on the terminal by pressing the
key. If the terminal is protected by a PIN code (PIN1, security
is described more in detail in section 6.7.4 Security), you will be
prompted to enter the PIN-code on the handset before you can
proceed.
After a while the display reads “Search for satellite”. This is due
to the fact that the antenna alignment seldom gives an adequate
signal quality. It is necessary to fine align the antenna. For this
purpose it is possible to activate an audible tone in the antenna,
which indicates the received signal quality. It is activated on the
handset by pressing
. This also implies that the C/No value
is shown (signal quality) in the display on the handset. Now fine
align the antenna for maximum received signal strength, it should
read at least 53 dB/Hz in order to make it possible to use the high
speed services.
Now turn off the audible tone by pressing and turn off the
C/No indication by pressing .
The terminal now receives the signal transmitted by one of the
NCS’s. This signal contains information about which satellite
(area) you are connected to and the handset will now prompt you
to accept this area (AORE, AORW, IOR or POR). Accept by
pressing
.
If the terminal previously with success has been used in this
ocean region. It will automatically select the same LES operator
again as gateway to the terrestrial network. Ocean region and
LES operator is indicated on the handset display.