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Message: <blockquote data-quote="Channel Hopper" data-source="post: 1073565" data-attributes="member: 175144">Now that I have the whole caboodle working, of sorts, I've been receiving what sounds suspiciously like morse code on a frequency near enough to around 9kHz, though it is at a bandwidth that the laptop sound card and the SDR Sharp programme cannot filter any better to remove the distortion.My guess it is somebody (or a relay station ) local as the loop cannot be reacting well in the tank circuit I have built, plus everything is indoors at ground level.The capacitor used is measured at roughly 10nF on the meter, tuned to a shade under 11nF with a couple of beehive trimmers in parallel. The meter also takes into account the coaxial cable and connectors between the hoop and the incoming earphone jack at dead on 9.7nF with me sitting nearby.Resonant frequency should be just above 8.4kHz from my reckoning.</blockquote>