> For the complete documentation index, see [llms.txt](https://twelite.gitbook.io/mw-psd-p1447/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://twelite.gitbook.io/mw-psd-p1447/directivity.md).

# 指向性

* 指向性測定方法１(標準的な設置方法)\
  ※ロゴ側が180°方向

![<図：指向性測定方法1>](/files/-Mfk_EO1gwFI0SGnyz3W)

| 最大値        | 最小値        | 平均値        | 半値角       |
| ---------- | ---------- | ---------- | --------- |
| -0.59\[dB] | -6.40\[dB] | -3.24\[dB] | 約110°(注2) |

* 指向性測定方法 2\
  ※ケーブル付属側が180°方向。

![<図：指向性測定方法2>](/files/-MfqBLYNsu1ve43wFeIR)

| 最大値         | 最小値         | 平均値         |
| ----------- | ----------- | ----------- |
| -14.31\[dB] | -18.70\[dB] | -16.59\[dB] |

* 指向性測定方法３\
  ※ロゴ側が180°方向。

![<図：指向性測定方法3>](/files/-MfqC-Xnj6imgm2WhbO2)

| 最大値         | 最小値         | 平均値         |
| ----------- | ----------- | ----------- |
| -15.00\[dB] | -20.17\[dB] | -17.11\[dB] |

* 指向性測定方法4\
  ※ロゴ側が180°方法。

![<図：指向性測定方法4>](/files/-MfqCvdMbJcQu4doVzKU)

| 最大値        | 最小値         | 平均値        | 半値角       |
| ---------- | ----------- | ---------- | --------- |
| -0.53\[dB] | -17.68\[dB] | -4.98\[dB] | 約100°(注2) |

注２：ロゴ側､半面のピーク値を基準とした半値角です。逆面､半面の半値角もほぼ同等となります。\
注３：指向性チャートの 0\[dB]は標準的なダイポールアンテナの利得です。


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