hello,
this would be easier if you had a better meter.
if you are in the uk you should look at some other dishes to get the approx direction.
if you are geting polish channels the above advice is correct you may be in 19 east.
in that direction and standing behind the dish there is one at 13 east.
1 inch to the left there is one at 16 and another there is one at 19.
few inches to the left there is one at 23 few more one at 26 and another inch or so there is one at 28 which is where you want to be.
the dish lnb if standardly made needs to point to 7 on the clock where the cable screws on undernneeth.
this if you are facing the front of the dish.
this is the scrw of the lnb because the satellites in that area are slanted is space.
if you set up the bbc frequency and some one can look at the sig strength and quality while you are moving the dish a little at a time.
you can peek the signal out and it should be a lot easier.
hope this helps a little
ralph