10 technical terms, 5 deleting a satellite position, 6 reference position – TechniSat DIGIT MF4-S User Manual

Page 62

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9.5 Deleting a satellite position

To delete a satellite position from the satellite list, proceed as follows:

>

Use the arrow keys to mark the field Current satellite

list.

>

Press OK to open the current satellite list.

>

Use the arrow keys up/down to select the satellite you

wish to delete.

>

Confirm by pressing OK.

>

Use the arrow keys to mark Delete sat.

>

To delete the satellite press OK and confirm the message

displayed by pressing OK again.

9.6 Reference position

When installing the external installation, the motor must be in the

reference position (0°). You can thus return the motor to this position

(0°) at any time using the function “Go to reference position”.

>

Press the red function key Ref.pos to turn the antenna

automatically to its reference position.

10 Technical terms

Antenna cable:

Connecting cable between the modulator of the satellite receiver and

the antenna input of the television set, used as an alternative if no

SCART socket is available.

AV: see SCART

Co-axial cable:

Connection cable between LNC and satellite receiver,used to transmit

the signals received, and to supply current to the LNC.

Data compression/MPEG1/MPEG2:

The volume of data involved in transmitting the current television

standard (625 lines, and a picture frequency of 50 Hz results in a

figure of 216 MBit/s of digital data.

This would require bandwidths that can currently not provided, whet-

her by satellites nor by terrestrial systems. For this reason, the total

volume of data transmitted is reduced by means of a compression

algorithm. For Europe, MPEG-2 has been accepted as the internatio-

nal standard for data compression. MPEG-2 is an expanded version

of MPEG-1.

DiSEqC:

Digital Satellite Equipment Control: A digital switching signal used to

control DiSEqC-compatible components of the external installation via

the antenna cable. An example of an installation consisting of

DiSEqC components can be seen in (Fig. 10-1).

62

(Fig. 10-1)

A B

Position

Output

A B

Position

Output

A B

Option

Output

Example:

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