About the radio frequency parameters and distance of WL33.

[WWang.15]

Dear ST experts.

We are a module manufacturer. We have designed a module based on WL33. We have been using ST's dk board for verification. However, when we tested the distance, the original dk board was about 200 meters. With a 20dbm and -12X sensitivity, we have high expectations for this chip. Do you have ST distance test reports and parameters?
2. If our deviation is <2.5Khz, does it mean that we need to replace the TCXO?

B.R. Weili Wang.

[Saverio GRUTTA]

Hello Weili,

I propose to evaluate the performances of two RF settings:

First RF configuration:

• Data rate=200 kbps
• Frequency deviation = 100 kHz
• Channel filter= 400 KHz
• DSSS = 16

Second RF configuration:

• Data rate=100 kbps
• Frequency deviation = 50 kHz
• Channel filter= 200 KHz
• DSSS = 16

Regards

Saverio

[WWang.15]

Hi Saverio.

Regarding the DSSS setting, is it the Spread Factor in the GUI?

[Saverio GRUTTA]

Hello Weili,

Yes, It is the Spread Factor.  

Regards

Saverio