In recent weeks a number of amateur tests have been running from the USA to Europe around 74kHz and at 29.499kHz using several hundred watts to large antennas. 74kHz has been well copied , but the surprise is 29.499kHz with SWL Paul Nicholson and Marcus DF6NM, and others, copying the test signals, for example, at over 15dB S/N in 424uHz bandwidth. As far as I know, these 29.499kHz VLF signals are the first amateur VLF ones to span the Atlantic - fantastic results by well equipped stations using suitable RXs and good software.
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