There are ionospheric chirp sweepers that go through the hf spectrum
every couple of minutes. They sound like someone lightly clearing his
throat. Have no idea what it looks like on the pan display. On a given
frequency you'll hear the chirp at the exact same time every couple of
minutes
73,
Drew
AF2Z
On 10/29/17 17:02, Ken G Kopp wrote:
Maybe "sweeping" for checking antenna SWR .... or "memory tuning'' of PA's
and antenna tuners, as Elecraft units do. (;-)
73
K0PP
On Oct 29, 2017 14:05, "lmarion" <[email protected]> wrote:
the ones I can't figure out are the key down and then sweep across the
band with their VFO knob. I have bee seeing them since I had a soft rock
pan display and now on the P3. They are almost continuous. they stop
occasionally to QRM a QSO and then keep going.
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