Assessments - 4, GPA: 4.3
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must be in good order. Passers-by must not be endangered by falling objects. Secure the work/danger area. Mind that the technical values (e.g. wind load) of the antenna mast are not exceeded. Refer to the manufacturer if you do not know these values. Find an overview of the masts offered by Kathrein on the last page. Mount the antenna mast on solid ground only (walls, concrete, rafters) using the clamps, dowels and screws recommended by the manufacturer. Immediately leave the roof in case of a thunderstorm! Ground the antenna installation according to EN 50083-1. Notice: _____________________________________________________________ Mast installation and mast calculation (Fig. 1) Make sure that the mast is in vertical position when mounting it Only use masts or standpipes specially designed for antenna installation. Other tubes mostly do not have the necessary stability to withstand heavy wind or other climatical situations. Kathrein-masts and clamps fulfil these requirements. Find an overview of the masts provided by Kathrein on the last page antennas is from 22 mm to 60 mm 1/6 of its length ground (wood, concrete, walls) when mounting several antennas on one mast. If necessary, plug together the antenna parts, and fix them using Fix the dipole with cable connection box on the antenna square Open the reflector grille and fix it with the wing screws through Open the mast clamp and fix the antenna on the mast. are able to align the antenna to optimum reception. _____________________________________________________________ .. Connection of the cable (Fig. 3-4) Unscrew the knurled screw on the cable connection box and lift the cap Skin the cable Open the cable connection clamp and the strain relief clamp in the cap Connect the cable and tighten the clamps Screw the cap on the connection box Lay the cable according to the local conditions so that it cannot flutter in the wind and chafe (use either cable clamps or cable ties or insulating tape) In order to avoid ingress of moisture in the mast or brickwork, make a 'water sack' with the cable (Fig. 4) After finishing the alignment, tighten the wing screws on the mast clamp. For DVB-T reception, turn the antenna in its longitudinal alignment to the transmitter rotated 90° counter-clockwise. Observe the direction of rotation, as otherwise moisture can ingress in the connection box through the cable entry. If the antenna was properly mounted, the cable outlet points slantwise down, and the Kathrein-writing is legible horizontally-aligned (Fig. 6). If not, the Kathrein-writing is upside-down. The following steps must be carried out in order to be able to mount the antenna on the mast so that vertically polarised signals can be received: 1. Unfasten the mast clamp from the axle tube by loosening the clamping screw 3. Rotate the clamp 90° clockwise 4. Slide the mast clamp on the previous position on the axle tube 5. Then tighten the clamping screws again _______________________________________________________...
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