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bob85 posted:
"The results change when the dipole is measured at different heights above the same perfect groundplane...."

PAGE 25, 26: the receiving dipole antenna is oriented vertically to the ground pane and is situated at various elevations above the ground plane. These elevations are measured from the bottom of the dipole and include 0.5, 1, 3, 5, 7, and 9 wavelengths.

Equation (25) gives a transmission value of-54.7 dB for this configuration. The MININEC
Professional calculation is also -54.7 dB FOR ALL OF THE RECEIVE DIPOLE ELEVATIONS.

"interesting article, are these guys partly responsible for mininec ?"

the original MININEC was written by John Rockway with a little prodding and support from Jim Logan. WB0DGF Antenna Site - Mininec

<blockquote data-quote="freecell" data-source="post: 766903" data-attributes="member: 30">bob85 posted:&quot;The results change when the dipole is measured at different heights above the same perfect groundplane....&quot;PAGE 25, 26: the receiving dipole antenna is oriented vertically to the ground pane and is situated at various elevations above the ground plane. These elevations are measured from the bottom of the dipole and include 0.5, 1, 3, 5, 7, and 9 wavelengths.Equation (25) gives a transmission value of-54.7 dB for this configuration. The MININECProfessional calculation is also -54.7 dB FOR ALL OF THE RECEIVE DIPOLE ELEVATIONS.&quot;interesting article, are these guys partly responsible for mininec ?&quot;the original MININEC was written by John Rockway with a little prodding and support from Jim Logan. <a href="http://wb0dgf.com/mininec.htm" target="_blank">WB0DGF Antenna Site - Mininec</a></blockquote>

[QUOTE="freecell, post: 766903, member: 30"] bob85 posted: "The results change when the dipole is measured at different heights above the same perfect groundplane...." PAGE 25, 26: the receiving dipole antenna is oriented vertically to the ground pane and is situated at various elevations above the ground plane. These elevations are measured from the bottom of the dipole and include 0.5, 1, 3, 5, 7, and 9 wavelengths. Equation (25) gives a transmission value of-54.7 dB for this configuration. The MININEC Professional calculation is also -54.7 dB FOR ALL OF THE RECEIVE DIPOLE ELEVATIONS. "interesting article, are these guys partly responsible for mininec ?" the original MININEC was written by John Rockway with a little prodding and support from Jim Logan. [URL='http://wb0dgf.com/mininec.htm']WB0DGF Antenna Site - Mininec[/URL] [/QUOTE]

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