Re: Topband: 5/8 wavelength vertical is mo betta than shorter versions??

2013-09-30 Thread AJ4SQ
" The radiation toward an elevation angle of 5 degrees shown in the surface wave plot continues in essentially a straight line, to reach the ionosphere." I'm still puzzled by these statements. What is NEC calculating when one selects the surface field? I am under the impression that it finds the

Re: Topband: More anecdotal "stories" to cause one to stop and....

2013-09-15 Thread AJ4SQ
an ...and then type page 686 at the box in the toolbar just above the page display. It takes you to page 674 in the book. 73, Tony K4QE On Sun, Sep 15, 2013 at 5:18 PM, Richard Fry wrote: > "AJ4SQ" wrote: > >> ... I'm only trying to understand what the model i

Re: Topband: More anecdotal "stories" to cause one to stop and....

2013-09-15 Thread AJ4SQ
ssage- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Richard Fry Sent: Sunday, September 15, 2013 13:05 To: topband@contesting.com Subject: Re: Topband: More anecdotal "stories" to cause one to stop and "AJ4SQ" wrote: >... I'm not sure what

Re: Topband: More anecdotal "stories" to cause one to stop and....

2013-09-15 Thread AJ4SQ
"The radiated field of a vertical monopole present on the surface of lossy earth decays at greater than a 1/R rate. But, for example, the field shown at a horizontal distance of 0.1 km in my surface wave plot for an elevation angle of 5 degrees is not located on the surface of the earth. It is ab

Re: Topband: More anecdotal "stories" to cause one to stop and....

2013-09-12 Thread AJ4SQ
I will preface my question by saying that I haven't worked through a problem like this in 20 years, so it's quite possible that I'm forgetting some obvious details. I'm puzzled by how this surface wave can reach the ionosphere. I believe you are saying that the standard MoM solution ignores the