Sea Tel ST14, Installation And Maintenance Manual

Page: 34 / 84

Setup for Model ST14M ST14 Ku-Band TVRO
3-2
•
MANUAL TARGET :
Single or multi-satellite tracking requirement.
Intended Use:
Description
By selecting this mode of manual operation the antenna will not automatically
target any satellite preset regardless of any received commands that may be sent
by the satellite receiver to do so. In this mode the user is required to manually
target the desired satellite by pressing the
NEXT
key to select the appropriate
Preset (i.e. SAT 2) and allowing the satellite receiver to select receive polarity
based on the current channel selection.
:
The following table serves as a guide to help properly setup your ST-14. Contact your (prospective) Service Provider
to define which satellite(s) are required which is normally based on your service subscription.
Service
Provider
Satellites
Required
Target Mode
Parameter
SAT 1
Preset
SAT 2
Preset
SAT 3
Preset
SAT 4
Preset
SAT 5
Preset
SAT 6
Preset
Generic 1-6 Manual As
required
by service
provider
As required
by service
provider
or EMPTY if
not
required
As required
by service
provider or
EMPTY if
not
required
As required
by service
provider or
EMPTY if
not
required
As required
by service
provider or
EMPTY if
not
required
As required
by service
provider or
EMPTY if
not
required
DirecTV 1-6 Manual As
required
by service
provider
As required
by service
provider
or EMPTY if
not
required
As required
by service
provider
or EMPTY if
not
required
As required
by service
provider
or EMPTY if
not
required
As required
by service
provider
or EMPTY if
not
required
As required
by service
provider
or EMPTY if
not
required
3.3.4.
To allow for a variance in AGC delta as a vessel travels from north to south or vice versa, the antenna system
will automatically calculate the tracking threshold based on one of three pre-determined latitude ranges,
“Lower, Middle, Upper”, and their programmed Threshold Offset Parameter. These three ranges are defined
by two adjustable system parameters known as “LOW LAT LIM” and “HIGH LAT LIM”. The Threshold-Offset
Parameter values associated with these ranges are based on an internal lookup table known as the “LAT-
THRESH OFFSET TABLE”. Although set at the factory this table is fully adjustable, either from the ACP or
through the RS-232 serial interface, based on user preference.
Setting Threshold Offset for Proper Tracking
Range Region Set Limitation
Parameter Factory
Default
Offset Parameter Factory
Default
Lower 0° to LOW LAT LIM LOW LAT LIM 35 THRSH OFFS_1 80
Middle LOW LAT LIM to
HIGH LAT LIM
Defined by LOW LAT
LIM & HIGH LAT LIM
35.1 to
44.9
THRSH OFFS_2 60
Upper HIGH LAT LIM to 90° HIGH LAT LIM 45 THRSH OFFS_3 30
SAT1 - First Satellite Parameters
Access all of the SAT1 individual parameters via a sub menu. Choices are:
3.3.4.1. PRESET
This choice presets all of the other sub-menu parameters to factory defaults for the satellite you
choose to set this SAT to.
1. Press the NEXT key to select this parameter for adjustment.
2. Once selected, press
▼
&
▲
arrow keys to scroll through a list of choices which this
SAT can be preset to. This list may change in future software revisions. The current
choices are: