The noise you hear "floating across the bands" - MIGHT- be one
or more ionospheric sounders. These are transmitters that send
high-power signals ... usually straight up ... into the ionosphere.
They usually sweep upward from frequencies below the BC band
into the higher HF regions and can be h
Stan,
Things are a bit on the noisy atmospheric side right now, so what you are
hearing may be compounded by that, but certainly not at an S-3 or higher
levell. Of course, that has nothing to do with whether or not to use the
PreAmp on 30 meters (or any other band).
If you turn the preamp off, t
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