Success. Of sorts. I now seem to be pointing at Astra 2 and have some channels. But there are a few odd things I noticed.
1. When using the Sat Finder I get Astra 1 at the full reading even with the dial turned all the way to the left (maximum -dB setting). When pointing at Astra 2 I have to turn the dial down to about -3dB to register a reading. I thought that was odd.
2. All the channels have numbers before the Horizontal and Vertical designation. I could seem to get all the ones that started 10xxx but then nothing for any that were 11xxx and 12xxxx. A slight tweak in elevation seemed to fix this. Is that what is to be expected?
So, in summary, for now I'm happy (ish). After a good three days of faffing about with it I seem to have a half decent number of channels. It still strikes me as odd that I could get Astra 1 without even really trying but Astra 2 was very particular. When it was on the basketball pole it seemed to be the other way round yet there must be no more than 2 metres in terms of length between where it was and where it is.
John