**Tool/software:** WEBENCH® Design Tools

Dear Support Team,

I am facing a few problems with the excel RF_Range_Estimator tool. Following Problems I would appreciate you would help me with:

- Plot Step: Is there any reason why it´s changing each time I choose No or with Antenna Diversity? What Connection does it have with the rest of the calculations in the calc Sheet?

- Direct Wave & Reflected Wave: In the PDF Document swra479a on the page 21, there are all Formulas, or let me say almost all, where you choose an "unknown" distance for me... Could u please explain that?

- Total Energy Friis: What difference does this value have in comparison with the Vertical/Horizontal? In my calculations, the last both mentioned will vary if the polarization is horizontal or vertical. Friis Formula is basically the same, because it considers the Reflected Energy depending on the polarization. My question is: what is the difference?

Thank You in Advance,

Wishing you a nice weekend

Elena