Rod W, It was me that provided the directional accurate results. It is highly possible that we met when I visited the station KCBC in Kettering, many years ago. At the ground level location that I visited, I am remembering three items - the Optimod 9000, the bank of vhs video recorders, operating on slow speed (8hrs per tape, to be kept for 3 months for monitoring purposes), and the sign on the wall for advertising that said, every second over 30 seconds must be paid for. Am I accurate?
Scottg.