Silvercrest SL 80/2 100CI Operation And Safety Notes page 51

Signal quality
The signal quality based on the reception quality is displayed here graphically
and numerically.
To delete a transponder, press the red key (17).
To add a new transponder, press the green button (18).
Remove TP
You can delete preset or newly added transponders from the list.
Caution!
Please remember that preset transponders will be permanently deleted.
To get the full scope of the set and the channel selection, it is advisable
not to delete any of the preset transponders.
Select the desired transponder in the item "Select TP".
Press the red key (17).
Press the "OK" key (14) to confirm the input.
or
Press the red key (17) to abort the input and not to delete the transponder.
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