COBHAM SAILOR 600 VSAT Ka, Руководство по установке

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Calibration
98-148248-A Chapter 6: Configuration 6-11
Confi
guration
6. Enter the data for the satellite that you want to use as a calibration reference. Note the
following calibration requirements:
Elevation angle: 5 – 70 degrees.
Not allowed for calibration: Inclined orbit.
Satellite identifier: GSC, NID, Orbital position (DVB-S, DVB-S2)
1
. See also Table 6-4 on
page 6-10.
7. Click
Apply
to save the settings for this satellite profile for calibration. The system is
ready for the azimuth and cable calibration.
6.3.3 Cable calibration
1. On the page
SERVICE > Calibration
click
Start
in the section
Cable calibration
.
2. Wait for the calibration to finish. After finished calibration a message with the result of
the calibration is displayed in the field
Result
.This screen shows how much attenuation
margin is left for the antenna cable. This indicates whether the antenna cable and
connectors are in good condition and well crimped.
It is recommended to make a cable calibration when servicing the system to check if the
antenna cable is still in good order.
3. After the azimuth and cable calibration switch on the modem. It will automatically
make a BUC calibration and is then ready.
4. When commissioning is completed, test all subscribed services.
1. Use Orbital position and NID if you want to use NID or orbital position or other KA band
satellites with DVB-S2 support. The DVB symbol rate must be >5 Ms/s. For NID use preferably
a unique NID (ONID). An azimuth calibration without NID can be useful in regions where the
satellite operators do not broadcast NID (US, China, Australia etc.). For NID=0 the NID is not
used when checking the satellite link. For NID 1 to 65535 the supplied NID is matched against
the Network ID broadcast by the satellite. For orbital position the supplied longitude is
matched with the orbital position broadcast by the satellite. Not all service providers
broadcast the orbital position.
Important
Make sure that the modem is not switched on at this point. The modem can
be switched on after the cable calibration.
Make sure that
Heading
,
Mode
on the page
SETTINGS > Navigation
is set
to
Fixed
or
External
.
Figure 6-9: Web interface: SERVICE, Calibration, cable attenuator margin
Important
When input from the vessel’s gyro compass is not available: Change the
heading input setting from
Fixed to None at Heading – Input .
Fixed heading is not allowed for sailing vessels!
SAILOR600Ka-IM-98-148248.book Page 11 Monday, November 23, 2015 1:36 PM