Sea Tel ST88-21 C/Ku-Band TVRO, Installation And Operation Manual

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ST88-21 C/Ku-Band TVRO Basic Setup of the ACU
4-1
4. Basic Setup of the ACU
4.1. Operator Settings
Refer to the Operation chapter of this manual to set the ship information. Latitude and longitude should automatically
update when the GPS engine mounted on the antenna pedestal triangulates an accurate location, but you may enter
this information manually to begin. Except when integrating NMEA-0183 Gyro source, you will have to enter the
initial Heading of the ship, subsequently the ACU will then increment/decrement as the Gyro Compass updates.
Next, set the satellite information. Longitude of the desired satellite you wish to use and the receiver settings for it are
especially important.
At this point you should be able to target the desired satellite. Continue with the setup steps below to optimize the
parameters for your installation.
4.2. SETUP Parameter Display and Entry Menus
Press and hold
BOTH the LEFT and the RIGHT arrow keys
for 6 seconds
to access to the
system setup parameters (at the
EL TRIM
selection).
Press
BOTH the LEFT and the RIGHT arrow
keys
momentarily
to access to the
SAVE NEW PARAMETERS
parameter.
Access is only required after installation or repairs of your antenna system. These parameters
should only be changed by an authorized service technician.
CAUTION:
Improper setting of these parameters will cause your system to not perform properly. Also refer to the
SETUP section of your antenna manual.
4.3. TRACK DISP
This parameter set the selections that the user will see in the Tracking - Band Selection menu. Band Selection
must
be
set to the appropriate selection for Tracking to operate properly.
Band selection controls the
local
logic output state of SW1 output terminal on the Terminal Mounting Strip PCB and
remote
C/Ku relays (or other switches) on the antenna pedestal.
The factory default selections and SW1 status for your 9797B is listed in the following table:
Setting Displayed band
selection
ADE Band Select Parameters
(Tone, Voltage & Aux Status) TMS SW1
Status
0000 C
X
KuLo
KuHi Tone OFF, Volt 13, Aux 0
Tone OFF, Volt 18, Aux 0
Tone OFF, Volt 13, Aux 1
Tone OFF, Volt 18, Aux 1 Open
Short
Open
Short
When the SW1 output is shorted to ground a current sink of 0.5 amps
max
is provided to control below
decks band selection tone generators or coax switches. When SW1 output is open it is a floating output.