Seeing noise blips go across the screen...the 6700 sees everything!

You've probably heard these signals for years, but are seeing them now. They have different names, whistlers, birdies...I've even heard them called radio "sprites". They are most often thought to be generated by the atmosphere, or storms, and always move up the band, like someone tuning across the frequency. They are not just someone spinning the dial while keyed down, as the signals will continue up the band, well past the amateur radio band edges. Set your panadaptor display on it's widest setting and just watch how far you can track them. Here is a far better explanation: https://en.wikipedia.org/wiki/Radio_atmospheric

I remember seeing a flex post linked to a video that said one source of a traveling blip was an iono-sonde transmitter at a university in Austin, TX that shoots a sweeping RF beam into the atmosphere in order to measure the ionospheric height and and MUF, etc. On one video, you could see the first moving **** from the direct path, and a second moving **** following it which was reflected off of the ionosphere. Pretty cool!