3250-1109

Note that the red trace continues after Pyongyang fades out. At the time that the green frequency trace jumps down about 3-5Hz or more another, unknown station has faded in, then switches off at 04.00. This may be Honduras. Not seen on all dates. On the lower charts I have separated these signals by carefully configuring SpecLab's text capture. It is shown by a blue trace.

This technique is only satisfactory if the frequencies are stable from day to day otherwise the charts will not be consistent as shown below!

Pyongyang November 2009

November 2020 I see google has drastically reduced resolution in their site conversion. All pictures are available. I will replace sometime.

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