Kevin Harris wrote >>Should I just assume that a maximized peak always contains the effect of a perfectly in phase reflection from the ground plane or is there a method of determining the actual effect<<
Those of us still using 3 meter OATS may say 6 dB, but that number is correct only if the length of the reflected path is quite close to that of the direct path, which is not so for a 3 meter OATS. On such a small site, the increase is less than 6 dB, approaching as low as 4 dB for some antenna heights. If you assume all of the reflected signal adds at signal maxima in the antenna height scan, your calculation of power will be off by only as much as imperfections in your site prevent it from actually doing so. Measured NSA already includes these effects. Cortland This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ieee-pses.org/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
