Topband: NE Dipole vs Vertical with Coupling Effects

[btippett@alum.mit.edu (Bill Tippett)]

        Bob supplied coupling loss data for Northeast orientation
(below) which I superposed on antenna patterns previously posted.
The following agrees fairly well with what I recall observing when I 
had both a vertical and dipole in Colorado.  I used the same loss
data for vertical polarization to the North from Omaha since it 
varies so little by azimuth.

        I'm surprised the 80 meter data Bob provided is so close
to 160 since my experience has been that high 80M dipoles work
very well compared to verticals.  However, I'll leave doing any
more models to someone else.

                                        73,  Bill  W4ZV

Omaha patterns INCLUDING coupling loss effects in NE direction:

   Rad. Angle           Dipole         Vertical        Difference
     (degs)             (dBi)           (dBi)       (Vert better by)

        3              -26.25           -8.12           18.13 
        6              -20.12           -4.08           16.04
        9              -17.01           -2.36           14.65
       12              -14.65           -1.47           13.18
       15              -12.77           -0.99           11.78
       18              -10.87           -0.77           10.10
       21               -9.04           -0.73            8.31
       24               -7.30           -0.82            6.48
       27               -5.63           -1.01            4.62
       30               -4.27           -1.39            2.88
       33               -2.44           -1.95            0.49
       36               -1.98           -2.48           -0.50
       39               -1.00           -3.07           -2.07
       42               -0.18           -3.83           -3.65
       45               +0.49           -4.54           -5.03

Original pattern models EXCLUDING coupling loss effects:

Rad. Angle           Dipole         Vertical            Difference
     (degs)             (dBi)           (dBi)        (Vert better by)

        3              -14.75           -7.92            6.83
        6               -8.32           -3.98            4.34
        9               -4.91           -2.26            2.65
       12               -2.55           -1.37            1.18
       15               -0.77           -0.89           -0.12
       18               +0.63           -0.67           -1.30
       21               +1.76           -0.63           -2.39
       24               +2.70           -0.72           -3.42
       27               +3.47           -0.91           -4.38
       30               +4.12           -1.19           -5.31
       33               +4.66           -1.55           -6.21
       36               +5.12           -1.98           -7.10
       39               +5.50           -2.47           -7.97
       42               +5.82           -3.03           -8.85
       45               +6.09           -3.64           -9.73

New coupling loss data from NM7M for horizontal antennas oriented NE:

********************************************************************
More numbers, now for a 80 mtr horizontal dipole oriented NE at Omaha.
 
I hope this helps.
 
73,
 
Bob, NM7M
 
                    160 m               80 m
  Rad.Angle       NE Coupling       NE Coupling
     deg)            (dB)               (dB)
 
      3             -11.5               -10.3
      6             -11.8               -11.0
      9             -12.1               -11.7
     12             -12.1               -12.1
     15             -12.0               -11.5
     18             -11.5               -10.3
     21             -10.8               -8.8
     24             -10.0               -7.7
     27             -9.1                -6.8
     30             -8.4                -6.1
     33             -7.7                -5.6
     36             -7.1                -5.1
     39             -6.5                -4.8
     42             -6.0                -4.5
     45             -5.6                -4.3