22nd October 2007 at 08:49
#49499
Pix
Guest
Hello Ziya
The difference is due to the propagation of the radio waves. Apply this formula :
EIRP – Path Loss
And you should find your “-38dBm”
with Path loss =
20.log(d) + 20xlog(f) + 32.44
with d : distance in km
f : frequency in MHz (900 MHz)
Regards,
Xabvier