Sea Tel ST14, Руководство по установке и обслуживанию

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ST14 Ku-Band TVRO Setup for Model ST14 D
2-9
2.3.11.4. LON (Ships Longitude)
This parameter is automatically set by the GPS antenna mounted on the Coastal pedestal inside the
radome. The GPS input enables the antenna to quickly & accurately target satellites (SAT1 – SAT6).
1. Press the
NEXT
key to select this sub-menu parameter for adjustment.
2. A cursor will appear under the rightmost digit. Press
▼
&
▲
arrow keys to
increment/decrement this digit.
3. Press the
NEXT
key to move the cursor to the next digit to the left. Press
▼
&
▲
arrow
keys to increment/decrement this digit.
4. Press the NEXT key to move the cursor to the next digit to the left. Press ▼ & ▲ arrow
keys to increment/decrement this digit.
5. Press the NEXT key to move the cursor to the next character to the right. Press
▼
&
▲
arrow keys to toggle this character between E (East) and W (West).
Press the
SAVE
key to save the current ships longitude in the LON parameter.
2.3.11.5. Latitude Ranges:
The three latitude ranges in the “LAT-THRESH OFFSET TABLE” are defined by setting
2
system
parameters, “Low Lat Lim” and “High Lat Lim”.
2.3.11.5.1.
The LOW LAT LIM parameter
defines the “Lower” Latitude
Limitation Range and is
entered using any whole
degree from 0-90. The LOW
LAT LIM parameter sets the
highest latitude position of
the lower latitude range.
Therefore the lower latitude
range will be any latitude
range from 0° to LOW LAT LIM parameter. While in this range, the system will use the
parameter entered for LOW LAT OFFSET for calculating the tracking threshold
Lower Latitude Range
Example: To define a Lower Latitude Range of 0° to 35°, enter a LOW LAT LIM parameter
value of 35.
1. Press the NEXT key to select this sub-menu parameter for adjustment.
2. A cursor will appear under the rightmost digit. Press
▼
&
▲
arrow keys to
increment/decrement this digit.
3. Press the
NEXT
key to move the cursor to the next digit to the left. Press
▼
&
▲
arrow keys to increment/decrement this digit.
4. Press the
NEXT
key to move the cursor to the next digit to the left. Press
▼
&
▲
arrow keys to increment/decrement this digit.
5. Press the
SAVE
key to save the desired parameter
2.3.11.5.2.
The “Middle” Latitude
Limitation Range is defined by
the values set for the LOW
LAT LIM
Middle Latitude Range
and HIGH LAT LIM
parameters. The HIGH LAT
LIM parameter sets the
highest latitude position of
the Middle latitude range
while the LOW LAT LIM
parameter entered sets the lowest latitude position of the Middle latitude range. Therefore
the Middle latitude range will be any latitude position from the LOW LAT LIM parameter to
the HIGH LAT LIM parameter. Example: To define a Middle Latitude range of 35° to 45°,
enter a HIGH LAT LIM of 45 and enter a LOW LAT LIM of 35° While in this range the
Figure 2-1 Lower Latitude Range
Figure 2-2 Middle Latitude Range