Kathrein Twin-PVR Satellite UFS 821si - Manual (Page 25)

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On-Screen Display (OSD)
TV / Radio Channel List
Press the  button to access the channel list.
At the top left a TV set or radio icon indicates whether the list is a TV
channel list or a radio channel list. Press the blue
 button to switch
between the TV and radio channel lists.
To the right of it you see the current channel list sort order as selected
by you.
The channel list can display channels according to various selection
and sort criteria, combined variably (see also the example screenshot
at the bottom of the next page).
Selection options:
- Press the red
 button to switch between your own Favourite lists
and the list containing all the channels.
- Press the green  button to view only the channels from a specific
satellite (e.g. ASTRA) or from all the satellites being received
(corresponding to the “All channels” list).
“No signal” indicates that an error has occurred in the reception system
or in the receiver settings, or that the transponder is not sending.
Check the Sat IF connection and the LNB configuration. If you have
changed settings, compare them against the basic settings (provided
you had made a note of them as suggested).
Error Signalling