dBm

sergio gonzalez (sergiog@ece.ubc.ca) Wed, 12 Apr 2000 10:41:27 -0700 (PDT) 

Date: Wed, 12 Apr 2000 10:41:27 -0700 (PDT)
From: sergio gonzalez <sergiog@ece.ubc.ca>
Subject: dBm



Hello,

In the solutions handout for assignment #1, on the solution for problem
3.16, it is indicated that the threshold (gamma)=noise_floor(dBm)+SNR(dB).
Is it really correct to add dBm to dB?. 

Also, on the next page (39) of the solutions set, it shows the equation:

Pr(dmax)=Pr(d0)[dBm]-10 x n x log (dmax/d0), whereas in the textbook, eq.
3.68 (pag 102) shows the same equation with a "+" sign, not a "-". 

Same questions apply for solution of prob. 3.17

Thanks

Sergio