Hi. The whole process can be very hit and miss. I have had a system for about 10 yrs and sometimes I get a connection within minutes and other times it can take one hour for no obvious reason. There should be no problem with your dish size in most parts of the UK. You may have already had this info but if you have not read the info on www.satelliteforcaravans.co.uk If you follow the guidance on this site you will at least know you are doing everything correctly, after that a bit of luck comes into it.