RE: How to solve the Friis equation?

Hi yuyu,

I have a doubt. Its about the Gt formulae that u gave me regarding antenna.

Gt= (4PgrR/lambda)2 Pr/(Pt*Gr)

Gt (dBi)= 10 log Gt


My situation is :

I am transmitting at a power level of -10dBm in sweep oscillator (as a transmitter) and kept signal generator as a receiver. Signal generator receives -55dBm for 2.6GHz.

Based on the formulae that you gave, I'm confused on:

1) What value should I put in Pr , Pt, Gr,Gt.


From my understanding, I am thinking that -10dBm in Pt and -60dBm. How about Gr, Gt?



Waiting for your reply.

Thank you.


Regards,
Saran

I have few questions
What is the distance between tx and rx?
when it is in sweep how you specify that the frequency as 2.6GHz only?

Hi ks pala,

The distance between tx and rx is 6 feets.

In both equipments, i key-in 2.6GHz as centre freq and trying to calculate the gain in dBi.

I think I answered your question?


Waiting for your reply.

Thank you.

Regards,
Saran