Pi  matching circuit：

 

Sigfox certification Item：

 

 

 

Conductive Test

920.1375MHz

921.3875MHz

922.6625MHz

TX Power

15.7dBm

15.3dBm

14.5dBm

TX Current

270mA

260mA

240mA

Frequency Offset

-233Hz

-267Hz

-233Hz

2nd Harmonic

-34.9dBm

-36.1dBm

-37.1dBm

3rd Harmonic

-63.1dBm

-63.9dBm

-64.9dBm

4th Harmonic

-59.7dBm

-60.4dBm

-60.9dBm

5th Harmonic

-60.3dBm

-62.3dBm

-65.3dBm

6th Harmonic

-68.3dBm

-68.5dBm

-70.1dBm

7th Harmonic

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8th Harmonic

-63.2dBm

-63.9dBm

-65.8dBm

9th Harmonic

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10th Harmonic

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