RY-900B
947.5 MHz
10.05 dBd (12.20 dBi)
Vertical polarization



Vertical radiation pattern


0 = zenith, 90 = horizon, 180 = nadir

Angle     Field    Rel dB       Attn        dBi        dBd
-----     ------   ------     ------     ------     ------
    0     0.120    -18.40      18.40      -6.20      -8.35
    1     0.120    -18.41      18.41      -6.21      -8.36
    2     0.117    -18.67      18.67      -6.47      -8.62
    3     0.110    -19.19      19.19      -6.99      -9.14
    4     0.100    -20.00      20.00      -7.80      -9.95
    5     0.088    -21.09      21.09      -8.89     -11.04
    6     0.076    -22.43      22.43     -10.23     -12.38
    7     0.063    -23.99      23.99     -11.79     -13.94
    8     0.052    -25.68      25.68     -13.48     -15.63
    9     0.042    -27.47      27.47     -15.27     -17.42
   10     0.034    -29.38      29.38     -17.18     -19.33
   11     0.027    -31.27      31.27     -19.07     -21.22
   12     0.024    -32.30      32.30     -20.10     -22.25
   13     0.028    -31.17      31.17     -18.97     -21.12
   14     0.037    -28.71      28.71     -16.51     -18.66
   15     0.048    -26.32      26.32     -14.12     -16.27
   16     0.060    -24.42      24.42     -12.22     -14.37
   17     0.071    -23.01      23.01     -10.81     -12.96
   18     0.079    -22.05      22.05      -9.85     -12.00
   19     0.084    -21.47      21.47      -9.27     -11.42
   20     0.087    -21.23      21.23      -9.03     -11.18
   21     0.087    -21.25      21.25      -9.05     -11.20
   22     0.084    -21.47      21.47      -9.27     -11.42
   23     0.082    -21.75      21.75      -9.55     -11.70
   24     0.080    -21.92      21.92      -9.72     -11.87
   25     0.081    -21.81      21.81      -9.61     -11.76
   26     0.085    -21.39      21.39      -9.19     -11.34
   27     0.091    -20.79      20.79      -8.59     -10.74
   28     0.098    -20.20      20.20      -8.00     -10.15
   29     0.103    -19.78      19.78      -7.58      -9.73
   30     0.105    -19.60      19.60      -7.40      -9.55
   31     0.103    -19.71      19.71      -7.51      -9.66
   32     0.099    -20.10      20.10      -7.90     -10.05
   33     0.092    -20.73      20.73      -8.53     -10.68
   34     0.084    -21.52      21.52      -9.32     -11.47
   35     0.076    -22.33      22.33     -10.13     -12.28
   36     0.071    -22.96      22.96     -10.76     -12.91
   37     0.068    -23.29      23.29     -11.09     -13.24
   38     0.068    -23.31      23.31     -11.11     -13.26
   39     0.070    -23.10      23.10     -10.90     -13.05
   40     0.073    -22.75      22.75     -10.55     -12.70
   41     0.077    -22.26      22.26     -10.06     -12.21
   42     0.083    -21.62      21.62      -9.42     -11.57
   43     0.091    -20.78      20.78      -8.58     -10.73
   44     0.103    -19.78      19.78      -7.58      -9.73
   45     0.117    -18.66      18.66      -6.46      -8.61
   46     0.133    -17.51      17.51      -5.31      -7.46
   47     0.152    -16.38      16.38      -4.18      -6.33
   48     0.171    -15.32      15.32      -3.12      -5.27
   49     0.192    -14.33      14.33      -2.13      -4.28
   50     0.213    -13.42      13.42      -1.22      -3.37
   51     0.235    -12.57      12.57      -0.37      -2.52
   52     0.258    -11.77      11.77       0.43      -1.72
   53     0.282    -11.01      11.01       1.19      -0.96
   54     0.306    -10.28      10.28       1.92      -0.23
   55     0.332     -9.59       9.59       2.61       0.46
   56     0.358     -8.93       8.93       3.27       1.12
   57     0.384     -8.32       8.32       3.88       1.73
   58     0.410     -7.75       7.75       4.45       2.30
   59     0.435     -7.23       7.23       4.97       2.82
   60     0.460     -6.75       6.75       5.45       3.30
   61     0.484     -6.30       6.30       5.90       3.75
   62     0.509     -5.87       5.87       6.33       4.18
   63     0.534     -5.45       5.45       6.75       4.60
   64     0.560     -5.03       5.03       7.17       5.02
   65     0.588     -4.61       4.61       7.59       5.44
   66     0.617     -4.19       4.19       8.01       5.86
   67     0.647     -3.78       3.78       8.42       6.27
   68     0.677     -3.39       3.39       8.81       6.66
   69     0.706     -3.02       3.02       9.18       7.03
   70     0.735     -2.68       2.68       9.52       7.37
   71     0.760     -2.38       2.38       9.82       7.67
   72     0.784     -2.11       2.11      10.09       7.94
   73     0.807     -1.86       1.86      10.34       8.19
   74     0.827     -1.65       1.65      10.55       8.40
   75     0.845     -1.46       1.46      10.74       8.59
   76     0.862     -1.29       1.29      10.91       8.76
   77     0.879     -1.12       1.12      11.08       8.93
   78     0.894     -0.97       0.97      11.23       9.08
   79     0.909     -0.83       0.83      11.37       9.22
   80     0.924     -0.69       0.69      11.51       9.36
   81     0.938     -0.56       0.56      11.64       9.49
   82     0.951     -0.44       0.44      11.76       9.61
   83     0.963     -0.33       0.33      11.87       9.72
   84     0.973     -0.24       0.24      11.96       9.81
   85     0.982     -0.16       0.16      12.04       9.89
   86     0.989     -0.10       0.10      12.10       9.95
   87     0.994     -0.05       0.05      12.15      10.00
   88     0.998     -0.02       0.02      12.18      10.03
   89     0.999     -0.01       0.01      12.19      10.04
   90     1.000      0.00       0.00      12.20      10.05
   91     0.999     -0.01       0.01      12.19      10.04
   92     0.998     -0.02       0.02      12.18      10.03
   93     0.994     -0.05       0.05      12.15      10.00
   94     0.990     -0.09       0.09      12.11       9.96
   95     0.984     -0.14       0.14      12.06       9.91
   96     0.975     -0.22       0.22      11.98       9.83
   97     0.964     -0.32       0.32      11.88       9.73
   98     0.951     -0.44       0.44      11.76       9.61
   99     0.934     -0.59       0.59      11.61       9.46
  100     0.915     -0.77       0.77      11.43       9.28
  101     0.894     -0.97       0.97      11.23       9.08
  102     0.874     -1.17       1.17      11.03       8.88
  103     0.852     -1.39       1.39      10.81       8.66
  104     0.831     -1.61       1.61      10.59       8.44
  105     0.810     -1.83       1.83      10.37       8.22
  106     0.791     -2.04       2.04      10.16       8.01
  107     0.772     -2.25       2.25       9.95       7.80
  108     0.753     -2.46       2.46       9.74       7.59
  109     0.734     -2.69       2.69       9.51       7.36
  110     0.713     -2.94       2.94       9.26       7.11
  111     0.689     -3.23       3.23       8.97       6.82
  112     0.664     -3.56       3.56       8.64       6.49
  113     0.636     -3.93       3.93       8.27       6.12
  114     0.606     -4.35       4.35       7.85       5.70
  115     0.575     -4.80       4.80       7.40       5.25
  116     0.545     -5.28       5.28       6.92       4.77
  117     0.515     -5.77       5.77       6.43       4.28
  118     0.487     -6.25       6.25       5.95       3.80
  119     0.461     -6.72       6.72       5.48       3.33
  120     0.438     -7.17       7.17       5.03       2.88
  121     0.417     -7.60       7.60       4.60       2.45
  122     0.397     -8.02       8.02       4.18       2.03
  123     0.378     -8.46       8.46       3.74       1.59
  124     0.359     -8.91       8.91       3.29       1.14
  125     0.339     -9.40       9.40       2.80       0.65
  126     0.319     -9.93       9.93       2.27       0.12
  127     0.298    -10.51      10.51       1.69      -0.46
  128     0.277    -11.15      11.15       1.05      -1.10
  129     0.255    -11.86      11.86       0.34      -1.81
  130     0.233    -12.64      12.64      -0.44      -2.59
  131     0.211    -13.51      13.51      -1.31      -3.46
  132     0.189    -14.48      14.48      -2.28      -4.43
  133     0.167    -15.55      15.55      -3.35      -5.50
  134     0.145    -16.75      16.75      -4.55      -6.70
  135     0.125    -18.07      18.07      -5.87      -8.02
  136     0.106    -19.49      19.49      -7.29      -9.44
  137     0.089    -20.98      20.98      -8.78     -10.93
  138     0.075    -22.51      22.51     -10.31     -12.46
  139     0.063    -24.06      24.06     -11.86     -14.01
  140     0.052    -25.64      25.64     -13.44     -15.59
  141     0.043    -27.36      27.36     -15.16     -17.31
  142     0.034    -29.43      29.43     -17.23     -19.38
  143     0.025    -32.16      32.16     -19.96     -22.11
  144     0.016    -36.19      36.19     -23.99     -26.14
  145     0.007    -43.11      43.11     -30.91     -33.06
  146     0.004    -47.86      47.86     -35.66     -37.81
  147     0.010    -40.17      40.17     -27.97     -30.12
  148     0.015    -36.53      36.53     -24.33     -26.48
  149     0.018    -34.77      34.77     -22.57     -24.72
  150     0.020    -34.09      34.09     -21.89     -24.04
  151     0.020    -34.16      34.16     -21.96     -24.11
  152     0.018    -34.85      34.85     -22.65     -24.80
  153     0.016    -36.09      36.09     -23.89     -26.04
  154     0.013    -37.79      37.79     -25.59     -27.74
  155     0.010    -39.77      39.77     -27.57     -29.72
  156     0.008    -41.51      41.51     -29.31     -31.46
  157     0.008    -42.39      42.39     -30.19     -32.34
  158     0.007    -42.70      42.70     -30.50     -32.65
  159     0.007    -43.45      43.45     -31.25     -33.40
  160     0.005    -45.72      45.72     -33.52     -35.67
  161     0.003    -50.57      50.57     -38.37     -40.52
  162     0.004    -47.83      47.83     -35.63     -37.78
  163     0.009    -40.94      40.94     -28.74     -30.89
  164     0.015    -36.52      36.52     -24.32     -26.47
  165     0.021    -33.52      33.52     -21.32     -23.47
  166     0.027    -31.39      31.39     -19.19     -21.34
  167     0.032    -29.87      29.87     -17.67     -19.82
  168     0.036    -28.80      28.80     -16.60     -18.75
  169     0.039    -28.10      28.10     -15.90     -18.05
  170     0.041    -27.74      27.74     -15.54     -17.69
  171     0.041    -27.71      27.71     -15.51     -17.66
  172     0.040    -28.06      28.06     -15.86     -18.01
  173     0.036    -28.82      28.82     -16.62     -18.77
  174     0.032    -30.02      30.02     -17.82     -19.97
  175     0.027    -31.43      31.43     -19.23     -21.38
  176     0.024    -32.22      32.22     -20.02     -22.17
  177     0.027    -31.44      31.44     -19.24     -21.39
  178     0.033    -29.68      29.68     -17.48     -19.63
  179     0.040    -27.95      27.95     -15.75     -17.90
  180     0.046    -26.67      26.67     -14.47     -16.62
  181     0.051    -25.86      25.86     -13.66     -15.81
  182     0.053    -25.49      25.49     -13.29     -15.44
  183     0.053    -25.48      25.48     -13.28     -15.43
  184     0.052    -25.74      25.74     -13.54     -15.69
  185     0.049    -26.18      26.18     -13.98     -16.13
  186     0.046    -26.69      26.69     -14.49     -16.64
  187     0.044    -27.18      27.18     -14.98     -17.13
  188     0.042    -27.60      27.60     -15.40     -17.55
  189     0.040    -27.92      27.92     -15.72     -17.87
  190     0.039    -28.15      28.15     -15.95     -18.10
  191     0.039    -28.29      28.29     -16.09     -18.24
  192     0.038    -28.37      28.37     -16.17     -18.32
  193     0.038    -28.39      28.39     -16.19     -18.34
  194     0.038    -28.37      28.37     -16.17     -18.32
  195     0.039    -28.28      28.28     -16.08     -18.23
  196     0.040    -28.05      28.05     -15.85     -18.00
  197     0.042    -27.63      27.63     -15.43     -17.58
  198     0.045    -27.00      27.00     -14.80     -16.95
  199     0.049    -26.22      26.22     -14.02     -16.17
  200     0.054    -25.39      25.39     -13.19     -15.34
  201     0.059    -24.57      24.57     -12.37     -14.52
  202     0.065    -23.80      23.80     -11.60     -13.75
  203     0.070    -23.11      23.11     -10.91     -13.06
  204     0.075    -22.49      22.49     -10.29     -12.44
  205     0.080    -21.94      21.94      -9.74     -11.89
  206     0.084    -21.48      21.48      -9.28     -11.43
  207     0.088    -21.11      21.11      -8.91     -11.06
  208     0.091    -20.81      20.81      -8.61     -10.76
  209     0.093    -20.59      20.59      -8.39     -10.54
  210     0.095    -20.42      20.42      -8.22     -10.37
  211     0.097    -20.27      20.27      -8.07     -10.22
  212     0.099    -20.12      20.12      -7.92     -10.07
  213     0.101    -19.93      19.93      -7.73      -9.88
  214     0.104    -19.70      19.70      -7.50      -9.65
  215     0.107    -19.41      19.41      -7.21      -9.36
  216     0.111    -19.09      19.09      -6.89      -9.04
  217     0.116    -18.74      18.74      -6.54      -8.69
  218     0.121    -18.37      18.37      -6.17      -8.32
  219     0.126    -18.00      18.00      -5.80      -7.95
  220     0.131    -17.63      17.63      -5.43      -7.58
  221     0.137    -17.27      17.27      -5.07      -7.22
  222     0.143    -16.90      16.90      -4.70      -6.85
  223     0.149    -16.55      16.55      -4.35      -6.50
  224     0.154    -16.23      16.23      -4.03      -6.18
  225     0.159    -15.98      15.98      -3.78      -5.93
  226     0.162    -15.81      15.81      -3.61      -5.76
  227     0.163    -15.76      15.76      -3.56      -5.71
  228     0.162    -15.82      15.82      -3.62      -5.77
  229     0.158    -16.01      16.01      -3.81      -5.96
  230     0.153    -16.30      16.30      -4.10      -6.25
  231     0.147    -16.68      16.68      -4.48      -6.63
  232     0.139    -17.14      17.14      -4.94      -7.09
  233     0.131    -17.64      17.64      -5.44      -7.59
  234     0.124    -18.16      18.16      -5.96      -8.11
  235     0.116    -18.71      18.71      -6.51      -8.66
  236     0.109    -19.26      19.26      -7.06      -9.21
  237     0.102    -19.79      19.79      -7.59      -9.74
  238     0.097    -20.29      20.29      -8.09     -10.24
  239     0.092    -20.73      20.73      -8.53     -10.68
  240     0.088    -21.10      21.10      -8.90     -11.05
  241     0.085    -21.40      21.40      -9.20     -11.35
  242     0.083    -21.62      21.62      -9.42     -11.57
  243     0.082    -21.77      21.77      -9.57     -11.72
  244     0.081    -21.87      21.87      -9.67     -11.82
  245     0.080    -21.93      21.93      -9.73     -11.88
  246     0.080    -21.98      21.98      -9.78     -11.93
  247     0.079    -22.04      22.04      -9.84     -11.99
  248     0.078    -22.12      22.12      -9.92     -12.07
  249     0.077    -22.23      22.23     -10.03     -12.18
  250     0.076    -22.35      22.35     -10.15     -12.30
  251     0.076    -22.44      22.44     -10.24     -12.39
  252     0.075    -22.49      22.49     -10.29     -12.44
  253     0.075    -22.48      22.48     -10.28     -12.43
  254     0.076    -22.39      22.39     -10.19     -12.34
  255     0.077    -22.24      22.24     -10.04     -12.19
  256     0.079    -22.02      22.02      -9.82     -11.97
  257     0.082    -21.74      21.74      -9.54     -11.69
  258     0.085    -21.40      21.40      -9.20     -11.35
  259     0.089    -21.04      21.04      -8.84     -10.99
  260     0.092    -20.68      20.68      -8.48     -10.63
  261     0.096    -20.35      20.35      -8.15     -10.30
  262     0.099    -20.05      20.05      -7.85     -10.00
  263     0.102    -19.80      19.80      -7.60      -9.75
  264     0.105    -19.60      19.60      -7.40      -9.55
  265     0.106    -19.46      19.46      -7.26      -9.41
  266     0.107    -19.39      19.39      -7.19      -9.34
  267     0.108    -19.36      19.36      -7.16      -9.31
  268     0.108    -19.37      19.37      -7.17      -9.32
  269     0.107    -19.40      19.40      -7.20      -9.35
  270     0.107    -19.44      19.44      -7.24      -9.39
  271     0.106    -19.47      19.47      -7.27      -9.42
  272     0.106    -19.48      19.48      -7.28      -9.43
  273     0.106    -19.49      19.49      -7.29      -9.44
  274     0.106    -19.50      19.50      -7.30      -9.45
  275     0.106    -19.53      19.53      -7.33      -9.48
  276     0.105    -19.60      19.60      -7.40      -9.55
  277     0.104    -19.69      19.69      -7.49      -9.64
  278     0.102    -19.80      19.80      -7.60      -9.75
  279     0.101    -19.90      19.90      -7.70      -9.85
  280     0.100    -19.98      19.98      -7.78      -9.93
  281     0.100    -19.99      19.99      -7.79      -9.94
  282     0.101    -19.93      19.93      -7.73      -9.88
  283     0.102    -19.79      19.79      -7.59      -9.74
  284     0.105    -19.60      19.60      -7.40      -9.55
  285     0.107    -19.39      19.39      -7.19      -9.34
  286     0.110    -19.21      19.21      -7.01      -9.16
  287     0.111    -19.08      19.08      -6.88      -9.03
  288     0.112    -19.03      19.03      -6.83      -8.98
  289     0.112    -19.05      19.05      -6.85      -9.00
  290     0.110    -19.15      19.15      -6.95      -9.10
  291     0.108    -19.30      19.30      -7.10      -9.25
  292     0.106    -19.48      19.48      -7.28      -9.43
  293     0.104    -19.66      19.66      -7.46      -9.61
  294     0.102    -19.81      19.81      -7.61      -9.76
  295     0.101    -19.89      19.89      -7.69      -9.84
  296     0.102    -19.87      19.87      -7.67      -9.82
  297     0.103    -19.72      19.72      -7.52      -9.67
  298     0.107    -19.45      19.45      -7.25      -9.40
  299     0.111    -19.08      19.08      -6.88      -9.03
  300     0.117    -18.64      18.64      -6.44      -8.59
  301     0.123    -18.18      18.18      -5.98      -8.13
  302     0.129    -17.77      17.77      -5.57      -7.72
  303     0.134    -17.44      17.44      -5.24      -7.39
  304     0.138    -17.22      17.22      -5.02      -7.17
  305     0.139    -17.13      17.13      -4.93      -7.08
  306     0.138    -17.18      17.18      -4.98      -7.13
  307     0.136    -17.35      17.35      -5.15      -7.30
  308     0.132    -17.62      17.62      -5.42      -7.57
  309     0.127    -17.92      17.92      -5.72      -7.87
  310     0.123    -18.18      18.18      -5.98      -8.13
  311     0.122    -18.30      18.30      -6.10      -8.25
  312     0.123    -18.22      18.22      -6.02      -8.17
  313     0.127    -17.95      17.95      -5.75      -7.90
  314     0.132    -17.57      17.57      -5.37      -7.52
  315     0.138    -17.19      17.19      -4.99      -7.14
  316     0.143    -16.90      16.90      -4.70      -6.85
  317     0.145    -16.78      16.78      -4.58      -6.73
  318     0.144    -16.85      16.85      -4.65      -6.80
  319     0.139    -17.12      17.12      -4.92      -7.07
  320     0.132    -17.56      17.56      -5.36      -7.51
  321     0.124    -18.13      18.13      -5.93      -8.08
  322     0.116    -18.72      18.72      -6.52      -8.67
  323     0.109    -19.24      19.24      -7.04      -9.19
  324     0.105    -19.57      19.57      -7.37      -9.52
  325     0.103    -19.71      19.71      -7.51      -9.66
  326     0.103    -19.72      19.72      -7.52      -9.67
  327     0.104    -19.70      19.70      -7.50      -9.65
  328     0.103    -19.76      19.76      -7.56      -9.71
  329     0.100    -19.96      19.96      -7.76      -9.91
  330     0.096    -20.34      20.34      -8.14     -10.29
  331     0.090    -20.90      20.90      -8.70     -10.85
  332     0.083    -21.61      21.61      -9.41     -11.56
  333     0.076    -22.40      22.40     -10.20     -12.35
  334     0.069    -23.20      23.20     -11.00     -13.15
  335     0.064    -23.87      23.87     -11.67     -13.82
  336     0.061    -24.34      24.34     -12.14     -14.29
  337     0.059    -24.55      24.55     -12.35     -14.50
  338     0.059    -24.52      24.52     -12.32     -14.47
  339     0.061    -24.29      24.29     -12.09     -14.24
  340     0.064    -23.90      23.90     -11.70     -13.85
  341     0.068    -23.41      23.41     -11.21     -13.36
  342     0.072    -22.89      22.89     -10.69     -12.84
  343     0.076    -22.38      22.38     -10.18     -12.33
  344     0.080    -21.94      21.94      -9.74     -11.89
  345     0.084    -21.56      21.56      -9.36     -11.51
  346     0.087    -21.25      21.25      -9.05     -11.20
  347     0.089    -21.01      21.01      -8.81     -10.96
  348     0.091    -20.83      20.83      -8.63     -10.78
  349     0.092    -20.71      20.71      -8.51     -10.66
  350     0.093    -20.64      20.64      -8.44     -10.59
  351     0.093    -20.59      20.59      -8.39     -10.54
  352     0.094    -20.55      20.55      -8.35     -10.50
  353     0.095    -20.49      20.49      -8.29     -10.44
  354     0.096    -20.34      20.34      -8.14     -10.29
  355     0.099    -20.10      20.10      -7.90     -10.05
  356     0.103    -19.75      19.75      -7.55      -9.70
  357     0.108    -19.34      19.34      -7.14      -9.29
  358     0.113    -18.92      18.92      -6.72      -8.87
  359     0.118    -18.59      18.59      -6.39      -8.54
