Q: A wireless link has the following parameters: Effective isotropic radiated power, EIRP| dB =50dBm

Q: A wireless link has the following parameters:Effective isotropic radiated power, EIRP|dB=50dBm
path loss, Lpath|dB=145dB
System losses, Lsys|dB=3dB
Rx antenna gain, Gr|dB=3dBi
Rx noise bandwidth, BW=100KHz
Rx amplifier available gain, G|dB=90dB
RX noise figure, F|dB=8dB
The noise temperature at the receiver antenna terminals is T0=290K.
A. 1- Find the signal power at the input to the receiver amplifier.
2- Find the noise powre spectrum at the input to the receiver amplifier.
3- Find the signal-to-noise ratio at the receiver amplifier output.
(the book is Introduction To Wireless Systems by Bruce A. Black..)