Building The "Lazy H" Antenna
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Freq    Gain (dbi)   Take off angle
3.6        5.64             67   
7.15      8.28             27     
10.1      7.10             25     
14.1      11.97           15     
18.1      10.22           13    
21.1      11.55           11    
24.95    10.75           10     
28.5      12.58             8 

Bottom of antenna at 35 feet above avg terrain