Fwd: [psk31] Hunting Really Weak Signals]

[Andre' Kesteloot]

> << Subj:         [psk31] Hunting Really Weak Signals
>  Date:  16/03/99 01:44:46 GMT
>  From:  slimreaper@juno.com (Philip G. Collier)
>  Sender:        owner-psk31@bipt106.bi.ehu.es
>  To:    psk31@bipt106.bi.ehu.es
>
>  Here's a tip for anyone interested in hunting really weak psk31 signals.
>
>  I've noticed that the built-in waterfall is useful for displaying signals
>  weak enough to be barely audible, but no weaker. PSK31sbw can decode
>  weaker signals, however, and a more sensitive display is needed.
>
>  Suddenly my idea light came on...The Windows program SPECTROGRAM works
>  well for displaying super weak CW. Using a spectrum average of 4,  I've
>  been able to watch a 2700 kHz bandwidth and watch for the familiar double
>  - line spectrum of psk31 signals. With a frequency marker traced on the
>  waterfall, I simply tune my li'l ATS-909 to place the signal on the
>  marker. When PSK31sbw is started, it is right on frequency...
>
>  So, if you're hunting DX, just use a good  scope to find your prey!
>
>  73,
>  Phil KG2DH
>   >>