Norsat International Inc. NSLK3200 ユーザーズマニュアル

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Norsat

Transmit power quick keys: storing of assigned low and nominal power
values for convenience and reduction in the chance of error when begin-
ning transmission. The starting of a typical satellite transmission follows:

Transmission of a low power carrier and adjustment of the operating
parameters

Raising of the power level to the assigned operating level; i.e. nomi-
nal power

Modulation of the carrier

LNB selection: selecting which LNB is attached to the antenna.

This step is typically done at headquarters prior to the unit being sent out into
the field.

In this step, the current location of the antenna is determined via the GPS or
by manually entering its coordinates. The desired satellite is then selected
from the pre-entered satellite information list, as entered in step 1, or by enter-
ing the orbital position of the satellite. The transmit polarization is then
selected. With this information, the required antenna settings are calculated
and displayed via the Norsat NewsLink GUI. The user then aligns the antenna
according to the displayed values. The DVB carrier search functionality allows
the user to confirm that they are locked on to the correct satellite.

Transmission will commence during this step. The user selects a transmission
profile from the pre-entered transmission profile list, as entered in step 1. The
user then selects a transmit frequency preset from the preset frequency list
as, entered in step 1, or manually enters a value for the transmit frequency.

While on the phone with the satellite operator, the operator will advise the
selection of different modulations and power levels in order to verify that there
is a properly adjusted and reliable uplink signal. Transmission will start auto-
matically as the final stage of this step.