Kathrein UFD 170 - Manual (Page 29)

Timer Settings
29
Note that most channels do not include a VPS signal in their digital
TV signals.
You must therefore always program your video or DVD recorder to
match the timer settings.
Note: If you have pre-programmed an On Air Download (software or channel On Air Download ( On Air Download (
list download) using the timer, all subsequent timer settings are ignored
after a successful download.
VPS Signal