[Wendymott]

Hi David and Jeremy...... All noted..... The first photo's didnt show the lid being incomplete..I was not going to invest more copper on the sides of the lid until I had a sense that it was going to be of value... after initial testing I decided to add the missing copper. I also fitted copper foil in the corners of the main box and a strip of copper along part of the top edge to act as a positive contact. The two analyser photos show the desired end result... two thing I did note was.. it is important to keep the lead from the analyser to the box as short as possible...otherwise I get Band 2 interference... and the other is that I really need to increase the number of bolts securing the outer skin to the inner copper, there is a hand capacity effect...so I have a lot of drilling to do tomorrow..but it was a worthwhile investment in time and materials