'Watermarks' have now been added to the diagrams due to recent internet theft of my drawings photo's and diagrams together with
systematic removal of my callsign's from these,
I sincerely regret having to 'watermark' and trust it will not inconvenience you too much.
Radio amateurs are free to download all diagrams and information from this website for their own use withought obligation, all I ask is,
if you intend displaying the diagrams on your website , as a courtesy please leave my callsign on. Some of these diagrams have taken
many hours to research and produce.