Travel Vision TVA 65, Руководство пользователя

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5. LNB and Skew
5.1
Single or Twin LNB
The centrepiece of the satellite antenna is the LNB, which bundles and processes the satellite signals. Per your
individual needs, it’s available in different variants. For example, if you want to use a second receiver, e.g. in the
sleeper compartment, you need a Twin LNB to connect a second independent receiver.
The TVA 65 with single LNB, suitable for connection of 1 receiver
The TVA 80 (Premium) with a twin LNB, which allows connection of two receivers that can operate independently.
5.2
Skew
For optimal reception at the limits of the reception ranges in South East and West regions, the LNB may have to
be rotated in order to compensate the polarisation deviation (SKEW angle) caused by the earth’s curvature.
5.3
Auto Skew
The TVA 80 (Premium) antenna has Autoskew, the system automatically rotates the LNB to be assured of
optimum signal.
5.4 Manual skew set for model TVA 65
With the TVA 65 the skew should be manual set.
The LNB is provided in a white plastic cover, which can be opened to adjust the skew.
With factory set, the LNB is set to +5. Before searching the satellite, you need to check or the LNB-skew must be
adapted.
Checking Skew
The table below is only a tool, if the current LNB skew setting has more difference as 10 degrees, there is a big
possibility that the system will not align with the satellite, or services from the receiver will be lost (picture will
freeze frame and may disappear).
Check your position in table below.
Astra 1 19'2E Astra 3 23,5E Astra 2 28E Hotbird 13E Eutelsat 9 E Thor 1 W
Scandinavia 0 0 0 -3,5 - 3 - 7
Netherlands,Belgium,Germany +3,5 +7 +10,5 0 -3 -7
UK / Ireland +7 +10,5 +14 +7 +12 +7
France +7 +10,5 +14 +3,5 +7 -7
Portugal / Spain +17,5 +17,5 +21 +14 +15 +7
Austria / Croatia / Italy 0 +3,5 +7 -3,5 -5 -14
Tunisia +3,5 +7 +17,5 0 0 -14
Morocco +24,5 * +31,5 +21 +24 +7
Canary Islands +28 +35 +38,5 +31,5 +36 +24,5
Greece / Romania -14 -10,5 +3,5 +7 +16,5 -24,5
Note: This table contains only an average for the skew adjustment