Hello, The way I model the ugly stuff is too use the end range of the ground type and see the effect. Depending on the antenna model, AGL etc. The difference can be minor or major. But I use that to see if I am going to have a problem.
Mel, K6KBE ________________________________ From: Geoffrey Mackenzie-Kennedy <[email protected]> To: [email protected] Cc: elecraft Reflector <[email protected]> Sent: Sunday, September 29, 2013 8:57 AM Subject: Re: [Elecraft] Antenna suggestions, resent Hello Vic, If you have not done this already, it would be wise to include in any model all nearby metallic objects such as gutters, downpipes, etc, *before* you cut any wire. Such objects can have a profound effect on the horizontal or vertical pattern (or both) of an antenna, as I am sure you know. If the surface of the roof is metal, then a metal grid can be used to represent the roof. If the roof is made of concrete, brick or stone, the roof becomes more difficult to model. I am not certain that I know how to model concrete, brick or stone objects correctly. 73, Geoff LX2AO On September 28, 2013 at 6:47 AM, Vic, K2VCO wrote: > I am moving to an apartment on the top floor of a 10 story building. I > have access to the roof which has a 30' x 10' flat space. On one edge of > this space is a building 9' high with a flat roof of about 10' x 20'. I > can put up antennas on top of this little building and on the flat area > mentioned above. <snip> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
