THE WOBBLER

A Mystery Radio Signal


Investigations

This page last updated July 13, 2005

PSK31 - A Suggested Wobbler Source

One suggestion offered for the Wobbler was that it might be stations transmitting the PSK31 modulation mode on USB, a common occurrence on HF, and widely used by Ham operators.

A WAV file sample recording was located on the Internet and evaluated.  My conclusion is that PSK31 modulation does not match the Wobbler signal.  The WAV file and the FFT spectrogram of it are included for evaluation of others.
PSK31 Sample WAV file (71K)
(This spectrogram does not use the identical settings as that of the Wobbler.)
PSK31 Sample
PSK31 Sample FFT Spectrogram (39K)


Investigations into this phenomenon continues.  New Wobbler results will be posted here as they are obtained.
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© W. Curt Deegan, 2005-2006