A major factor depends on what region in Spain you are located in.
The default Tp only applies to Sl<y receivers in order to get the full EPG to function.
You should be able to pick up South beam with a 50cm dish, see South beam footprint: _http://www.lyngsat-maps.com/maps/astra2a_south.html
If your going to use a Sl<y receiver, when you first power on, you'll know if your able to pull in North beam as the EPG will function or not. Dish size depends on your region. As said above, the box tries to look at 11.778 North beam. If it can't see the transponder, the box does nothing and says 'no sat signal being received'
See North beam footprint: _http://www.lyngsat-maps.com/maps/astra2a_north.html
Full instructions to change default transponder if required:
To change the default transponder setting, you will first need to
access the hidden INSTALLERS SETUP menu
First press the SERVICES button on your Sky remote
then '4' to access SYSTEM SETUP
Although it is not displayed, you will need to press '0' then '1' then SELECT
to access the INSTALLERS SETUP menu
then select '2' to enter DEFAULT TRANSPONDER
Select 'Frequency (GHz)'. By typing in the relevant numbers,
change the settings from 11.778 to 12.129
When the changes have been made, select 'Save New Settings'
Press BACK UP to return to main screen
On the screen you will then see the Sky Welcome Channel or it will say
'searching for listings' please wait
Wait until Sky Welcome Channel appears and then start viewing
Upon return to Northern Europe, the system will automatically default back to the North beam default transponder frequency.
