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The best antenna for LPFM

Play Freebird said:
... Based on your modelling, wouldn't you agree that the V/H RMS ratio is 2 to 3 dB greater than unity, and that this might account for better mobile coverage performance?
Click to expand...

I would agree if that is true for a real-world rototiller. But rather than continue discussing and judging NEC models -- below is a link to the "unoptimized," measured patterns of an ERI rototiller array when face-mounted on a 24" face tower section.

Note that the v-pol pattern is more directional than the h-pol pattern, as would be expected because the tower re-radiates v-pol better than h-pol, no matter who manufactured the antenna.

BUT equal h-pol and v-pol RMS pattern values are shown in the columns below the plots, so the RMS values for h-pol and v-pol ERP are the same.

http://i62.photobucket.com/albums/h85/rfry-100/SHPX_Measured_Pats.gif

RF
 
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