DTV04 HD TVRO Antenna
Setup
5-5
42.
Use the
LEFT
&
RIGHT
arrow keys to select appropriate digits then use the
‘
UP
&
DOWN’
arrow keys to change
EL TRIM
parameter to value recorded in Step 33.
(Pressing the Down
arrow key from 0000 will cause numbers to go negative) _________________________________________
□
43.
Press the
ENTER
arrow key to submit to RAM. __________________________________
□
44.
Quickly press and release both the
LEFT & RIGHT
arrow keys. _____________________
□
45.
Display should now read “
SAVE NEW PARAMETERS
”. _________________________________
□
46.
Press the
LEFT
arrow key to select parameter. _______________________________________
□
47.
Press the
ENTER
key and verify displays now reads “
PARAMETERS SAVED
”. ________
□
5.4.
Reflector Skew
In addition to full 3 axis
stabilization (Azimuth, Elevation
and Cross-Level), your system is
fitted with the required hardware
and software to drive the
reflector skew angle so that the
LNBF assembly properly aligns
with all 5 DIRECTV satellites.
This skew angle (displayed as POL
xxxx) is sub menu viewed on
under the Antenna Main Menu.
Once properly calibrated the function of adjusting reflector skew is an automatic function of the ACU,
provided the POL TYPE parameter is set to 72 (Auto SKEW Mode) based on the vessel’s geographic location.
1.
Verify antenna is tracking satellite 101
º
W with a decoded NID of FFFE. _____________________
□
2.
Using the satellite receiver, record the signal strength for satellite 101
º
W. ___________________
□
3.
Access the
POL OFFSET
parameter in the DAC2202 and either increment or decrement the
current displayed value as required to achieve maximum receive signal strength for an odd
transponder on satellite 119
º
W. _____________________________________________________
□
4.
Using the satellite receiver, verify the signal strength reading for satellite 101
º
has not changed
from the value recorded in step 2.____________________________________________________
□
5.
Access the “
SAVE NEW PARAMETERS”
selection in the DAC2202. _______________________
□
6.
Press the
RIGHT
arrow, then press
“ENTER” _________________________________________
□
7.
Verify
“PARAMETERS SAVED”
is displayed on front panel. ______________________________
□
5.5.
Blockage Mapping
Your system can be programmed to define up to 4 relative zones, where there are known blockage regions.
Tracking and auto Search features are automatically suspended when the antenna is pointed within this
specified region to assure it maintains its’ pointing angle to 101W. As the ship turns in heading and the
antenna comes out of the blockage zone there should be an immediate acquisition of the satellite.
BLOCKED status is displayed in the TRACKING window. In addition this feature enables to define Elevation
Blockage limits per zone. Calculate and enter the required blockage zones for this installation. See the
DAC2202 Antenna Control Unit manual for more detailed information and parameter entry instructions.
Содержание DTV04
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