Better, these look more like measured signal levels,
The sky wave plot looks like a use of a drafting compass. Actual measurements would reflect slight aircraft measurement irregularities. Thanks for the info. 73 Bruce-K1FZ www.qsl.net/k1fz/pennantnotes.html On Sat, 14 Feb 2015 04:23:08 -0600, Richard Fry <r...@adams.net> wrote: > Lower angle skip, such as WFAN being received in Europe, Africa, > Caribbean, >etc. would definitely be affected. In the extreme, the > shape of the >antenna pattern would look more like the one for > groundwave. > ________ > > Below is a link showing the complete 0.15 mV/m groundwave contour of > WFAN, to approximately the same map scale as the skywave chart linked > earlier. > > Note that even though this GW field intensity is lower than the 0.25 > mV/m contour shown for the 50% nighttime skywave of WFAN, the > distance along the surface of the ocean to that GW contour is less > than for the skywave contour for those paths. > > http://s20.postimg.org/r9ceghfu5/WFAN_Groundwave.gif _________________ > Topband Reflector Archives - http://www.contesting.com/_topband > > ----- End forwarded message ----- _________________ Topband Reflector Archives - http://www.contesting.com/_topband
