Propagation Links
Amateur Radio Studies
hfradio.org Studies
DX Zone
Near-Real-Time MUF Map
Grey Line
by 5B4WN
Here is a Gray Line Map that updates in real time and lets you move the time forward/back.
Grey Line
by John Walker
Often, propagation becomes excellent along what is known as the Gray Line. This image gives you the current view of where daylight is bordered by darkness. The Gray Line is that shade area along the entire boundary between night and day. See John’s website for more information about Astronomy and Space .
Recent Comments