1 For ‘Rule of 10s and 3s Example 1’ you will double the power three times and calculate the corresponding dBm values.

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Presentation transcript:

1 For ‘Rule of 10s and 3s Example 1’ you will double the power three times and calculate the corresponding dBm values.

2 dBmmW + - * ÷ Start off with the template. Rule of 10s and 3s Example 1: Double the mW three times and calculate the dBm values.

3 dBmmW + - * ÷ =2 The first step is to enter the first multiplier. *2 Calculate the new mW value by multiplying the current mW value (1) by the multiplier (*2), and then enter the new value in the mW column. Rule of 10s and 3s Example 1: Double the mW three times and calculate the dBm values.

4 dBmmW + - * ÷ =3 1 =2*2 Remember that whatever you do to one side, you must do the correlative mathematics on the other side. Since you multiplied on the right, you must add on the left. And since you multiplied by 2 on the right, you must add 3 on the left. +3 Rule of 10s and 3s Example 1: Double the mW three times and calculate the dBm values.

5 dBmmW + - * ÷ =3 1 =2 =4 You double the power a second time. *2 And calculate the new mW value by multiplying the current mW value (2) by the multiplier (*2), and then enter the new value in the mW column. +3 Rule of 10s and 3s Example 1: Double the mW three times and calculate the dBm values.

6 dBmmW + - * ÷ =3 =6 1 =2 =4 *2 Again, whatever you do to one side, you must do the correlative mathematics on the other side. Since you multiplied on the right, you must add on the left. And since you multiplied by 2 on the right, you must add 3 on the left. +3 Rule of 10s and 3s Example 1: Double the mW three times and calculate the dBm values.

7 dBmmW + - * ÷ =6 =9 1 2 =4 =8 *2 All that’s left is to double the mW side one more time and add the correlative +3 to the dBm side. +3 Rule of 10s and 3s Example 1: Double the mW three times and calculate the dBm values.

8 dBmmW + - * ÷ *2 So you know that 2 mW = 3 dBm and 4 mW = 6 dBm and 8 mW = 9 dBm. The two columns of numbers are equal. They are just presented using two different units of measurement. +3 Rule of 10s and 3s Example 1: Double the mW three times and calculate the dBm values.