Stacked Antennas-Direct 91XG UHF Corner-Yagi and Antennacraft FM-6 Antennas analyzed using 4nec2 to determine amount of interaction between them at various Separation Heights (measured Boom-Boom Centers).
Since there was no noticeable degradation to the A-C FM-6, no FM Band charts are provided here.
Significant degradation to 91XG Raw Gain, F/B & F/R Ratios & SWR did not occur until Boom-Boom Center Separation was just 1-foot. Minor degradation was observed at 1.5, 2-ft and 3-ft separation. Negligible degradation was observed for separations of 4-feet or more.
Date(s): 14 Aug 2013. Album by holl_ands. 1 - 7 of 7 Total. 6562 Visits.
enlarge 83KB, 807x1024 1 Stacked A-D UHF 91XG + A-C FM-6 3D View for 48-in Separation
enlarge 309KB, 1024x927 2 Stacked A-D UHF 91XG + A-C FM-6 Front View at 48-in Separation [1 large square = 5 inches]
enlarge 218KB, 1024x911 3 Stacked A-D UHF 91XG + A-C FM-6 Top View at 48-in Separation [1 large square = 12.5 inches]
enlarge 280KB, 1024x697 4 Stacked A-D UHF 91XG + A-C FM-6 Degradation to 91XG Raw Gain & F/R Ratio
enlarge 218KB, 1024x697 5 Stacked A-D UHF 91XG + A-C FM-6 Degradation to 91XG Net Gain & SWR (300-ohms)
enlarge 192KB, 1024x816 6 Stacked A-D UHF 91XG + A-C FM-6 Side View at 48-in Separation [1 large square = 5 inches]
