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Hi Ko,
Well its very difficult to tell from here what are
real lines and what may be spurious The broad bands are very like the modulation
patterns fron stations such as SXV on 135.7 to 135.85. You will have to
frequency calibrate the system and try to idintify the lines.Lists of LORAN
lines from various atations were published on the reflector some time ago.
Vertical lines on horiz traces are usually noise (static) but yours are too
regular.You should be able to see the UK stations around 135.925. I will be on
later on 135.922. I do think a filter is neccesary to prevent overload of the
pre-amp. Best of luck sorting things out. 73s
Laurie.
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