Kathrein CAS 120 Manuel de service télécharger pdf (Page 14)

936.2079/A/0206/6.8e

7. Aligning the antenna (Fig. 10)

With regard to the direction (Azimuth) and the inclination

(Elevation), the antenna must be accurately aligned to

the satellite. For multifeed reception, it is necessary to

align the antenna to the satellite with the weaker signal

level.

a) Setting the inclination (Elevation)

 When setting the elevation of the antenna, loosen the

6 screws A on the elevation scale.

 When you lightly tilt the antenna by hand, you can turn

the nut B (for fine adjustment) faster for rough adjust-

ment or pre-adjustment of the elevation angle.

 Now set the elevation. You find the correct angle of

the elevation for your mounting site in the mounting

instructions supplied with the feed system. Set this

angle on the scale (10° to 50°). Here, the respective

scale line on the support must be aligned with the

edge C of the reflector support sheet.

 Lightly screw on the screws A.

5. Setting polarisation angle (Fig. 9)

 One feed system (mono feed)

Adjust the polarisation angle according to the tables

(see feed system) on the feed system depending on

your mounting site and the position of the received

satellites.

The swivelling support H remains in the zero position.

 Mounting several feed systems (multifeed)

For multifeed reception, the swivelling support H must

be moved to the angel V according to the supplied

azimuth/elevation table for multifeed reception. In this

case, the polarisation angle on the feed system is not

adjusted according to this table, but rather to the cal-

culated correction angle :

NEW =PWTAB - V

Fig. 9

Fig. 10

Sense of rotation for polarisation angle

Sense of rotation for the angle V for swivelling part

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 31 32

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Kathrein CAS 120 Manuel de service Page 14