diario SWL I-56578 Antonio

9213.0/usb: 188-110C/D Appendix D waveform Id 0 (WID0) using ortogonal Walsh modulation in preamble section and in data blocks. The use of...

Just a couple of good quality recordings of the wideband activity that can be monitored in 9 MHz band. Both the waveforms belong to WBH...

yet another 188-110C App.D signal (WBHF,  Wide Band High Frequency) spotted around 1850 UTC on 5407.0 KHz/USB by my friend Karapuz: it...

Both the two signals A and B have the same duration and both have a long preamble-segment followed by the data-segment. The signals sp...